74492709 has 4 divisors (see below), whose sum is σ = 99323616. Its totient is φ = 49661804.

The previous prime is 74492707. The next prime is 74492767. The reversal of 74492709 is 90729447.

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 74492709 - 2¹ = 74492707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74492707) 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, 12415449 + ... + 12415454.

It is an arithmetic number, because the mean of its divisors is an integer number (24830904).

Almost surely, 2^74492709 is an apocalyptic number.

It is an amenable number.

74492709 is a deficient number, since it is larger than the sum of its proper divisors (24830907).

74492709 is a wasteful number, since it uses less digits than its factorization.

74492709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24830906.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 74492709 is about 8630.9158841921. The cubic root of 74492709 is about 420.7633679414.

The spelling of 74492709 in words is "seventy-four million, four hundred ninety-two thousand, seven hundred nine".