73797749 has 4 divisors (see below), whose sum is σ = 74514336. Its totient is φ = 73081164.

The previous prime is 73797733. The next prime is 73797751. The reversal of 73797749 is 94779737.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94779737 = 13 ⋅7290749.

It is a cyclic number.

It is not a de Polignac number, because 73797749 - 2⁴ = 73797733 is a prime.

It is a super-2 number, since 2×73797749² = 10892215514934002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73797749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73797149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358139 + ... + 358344.

It is an arithmetic number, because the mean of its divisors is an integer number (18628584).

Almost surely, 2^73797749 is an apocalyptic number.

It is an amenable number.

73797749 is a deficient number, since it is larger than the sum of its proper divisors (716587).

73797749 is a wasteful number, since it uses less digits than its factorization.

73797749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716586.

The product of its digits is 2333772, while the sum is 53.

The square root of 73797749 is about 8590.5616230838. The cubic root of 73797749 is about 419.4508109198.

The spelling of 73797749 in words is "seventy-three million, seven hundred ninety-seven thousand, seven hundred forty-nine".