74920607 has 4 divisors (see below), whose sum is σ = 74938320. Its totient is φ = 74902896.

The previous prime is 74920561. The next prime is 74920609. The reversal of 74920607 is 70602947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70602947 = 43 ⋅1641929.

It is a cyclic number.

It is not a de Polignac number, because 74920607 - 2¹² = 74916511 is a prime.

It is a super-2 number, since 2×74920607² = 11226194706496898, 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 (74920609) 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, 1619 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (18734580).

Almost surely, 2^74920607 is an apocalyptic number.

74920607 is a deficient number, since it is larger than the sum of its proper divisors (17713).

74920607 is a wasteful number, since it uses less digits than its factorization.

74920607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17712.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 74920607 is about 8655.6690671490. The cubic root of 74920607 is about 421.5674742247.

The spelling of 74920607 in words is "seventy-four million, nine hundred twenty thousand, six hundred seven".