74990733 has 4 divisors (see below), whose sum is σ = 99987648. Its totient is φ = 49993820.

The previous prime is 74990719. The next prime is 74990771. The reversal of 74990733 is 33709947.

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: 33709947 = 3 ⋅11236649.

It is a cyclic number.

It is not a de Polignac number, because 74990733 - 2⁴ = 74990717 is a prime.

It is a super-2 number, since 2×74990733² = 11247220071754578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74990233) 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, 12498453 + ... + 12498458.

It is an arithmetic number, because the mean of its divisors is an integer number (24996912).

Almost surely, 2^74990733 is an apocalyptic number.

It is an amenable number.

74990733 is a deficient number, since it is larger than the sum of its proper divisors (24996915).

74990733 is a wasteful number, since it uses less digits than its factorization.

74990733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24996914.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 74990733 is about 8659.7189908218. The cubic root of 74990733 is about 421.6989628454.

The spelling of 74990733 in words is "seventy-four million, nine hundred ninety thousand, seven hundred thirty-three".