74929709 has 4 divisors (see below), whose sum is σ = 75033504. Its totient is φ = 74825916.

The previous prime is 74929691. The next prime is 74929733. The reversal of 74929709 is 90792947.

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.

It is a cyclic number.

It is not a de Polignac number, because 74929709 - 2⁸ = 74929453 is a prime.

It is a super-2 number, since 2×74929709² = 11228922581649362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74929409) 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, 50807 + ... + 52260.

It is an arithmetic number, because the mean of its divisors is an integer number (18758376).

Almost surely, 2^74929709 is an apocalyptic number.

It is an amenable number.

74929709 is a deficient number, since it is larger than the sum of its proper divisors (103795).

74929709 is a wasteful number, since it uses less digits than its factorization.

74929709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103794.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 74929709 is about 8656.1948337592. The cubic root of 74929709 is about 421.5845454148.

The spelling of 74929709 in words is "seventy-four million, nine hundred twenty-nine thousand, seven hundred nine".