73672769 has 4 divisors (see below), whose sum is σ = 74921520. Its totient is φ = 72424020.

The previous prime is 73672759. The next prime is 73672783. The reversal of 73672769 is 96727637.

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: 96727637 = 17 ⋅5689861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73672769 is a prime.

It is a super-2 number, since 2×73672769² = 10855353784254722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73672759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624287 + ... + 624404.

It is an arithmetic number, because the mean of its divisors is an integer number (18730380).

Almost surely, 2^73672769 is an apocalyptic number.

It is an amenable number.

73672769 is a deficient number, since it is larger than the sum of its proper divisors (1248751).

73672769 is a wasteful number, since it uses less digits than its factorization.

73672769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248750.

The product of its digits is 666792, while the sum is 47.

The square root of 73672769 is about 8583.2842781770. The cubic root of 73672769 is about 419.2138904873.

The spelling of 73672769 in words is "seventy-three million, six hundred seventy-two thousand, seven hundred sixty-nine".