74992563 has 24 divisors (see below), whose sum is σ = 115062480. Its totient is φ = 46932480.

The previous prime is 74992531. The next prime is 74992571. The reversal of 74992563 is 36529947.

It is a happy number.

It is not a de Polignac number, because 74992563 - 2⁵ = 74992531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74993563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17383 + ... + 21263.

It is an arithmetic number, because the mean of its divisors is an integer number (4794270).

Almost surely, 2^74992563 is an apocalyptic number.

74992563 is a deficient number, since it is larger than the sum of its proper divisors (40069917).

74992563 is a wasteful number, since it uses less digits than its factorization.

74992563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019 (or 4016 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 74992563 is about 8659.8246518044. The cubic root of 74992563 is about 421.7023930596.

The spelling of 74992563 in words is "seventy-four million, nine hundred ninety-two thousand, five hundred sixty-three".