74972355 has 16 divisors (see below), whose sum is σ = 121923744. Its totient is φ = 39329280.

The previous prime is 74972351. The next prime is 74972357. The reversal of 74972355 is 55327947.

It is not a de Polignac number, because 74972355 - 2² = 74972351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74972351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40054 + ... + 41883.

It is an arithmetic number, because the mean of its divisors is an integer number (7620234).

Almost surely, 2^74972355 is an apocalyptic number.

74972355 is a deficient number, since it is larger than the sum of its proper divisors (46951389).

74972355 is a wasteful number, since it uses less digits than its factorization.

74972355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82006.

The product of its digits is 264600, while the sum is 42.

The square root of 74972355 is about 8658.6578059189. The cubic root of 74972355 is about 421.6645114032.

The spelling of 74972355 in words is "seventy-four million, nine hundred seventy-two thousand, three hundred fifty-five".