74591069 has 4 divisors (see below), whose sum is σ = 85246944. Its totient is φ = 63935196.

The previous prime is 74591059. The next prime is 74591081. The reversal of 74591069 is 96019547.

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 74591069 - 2¹⁶ = 74525533 is a prime.

It is a super-2 number, since 2×74591069² = 11127655149125522, 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 (74591059) 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, 5327927 + ... + 5327940.

It is an arithmetic number, because the mean of its divisors is an integer number (21311736).

Almost surely, 2^74591069 is an apocalyptic number.

It is an amenable number.

74591069 is a deficient number, since it is larger than the sum of its proper divisors (10655875).

74591069 is a wasteful number, since it uses less digits than its factorization.

74591069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10655874.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 74591069 is about 8636.6121251333. The cubic root of 74591069 is about 420.9484781503.

The spelling of 74591069 in words is "seventy-four million, five hundred ninety-one thousand, sixty-nine".