74527947 has 24 divisors (see below), whose sum is σ = 118407744. Its totient is φ = 44884224.

The previous prime is 74527939. The next prime is 74527967. The reversal of 74527947 is 74972547.

It is not a de Polignac number, because 74527947 - 2³ = 74527939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74527967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1278 + ... + 12275.

It is an arithmetic number, because the mean of its divisors is an integer number (4933656).

Almost surely, 2^74527947 is an apocalyptic number.

74527947 is a deficient number, since it is larger than the sum of its proper divisors (43879797).

74527947 is a wasteful number, since it uses less digits than its factorization.

74527947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13619 (or 13616 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 74527947 is about 8632.9570252608. The cubic root of 74527947 is about 420.8297033921.

The spelling of 74527947 in words is "seventy-four million, five hundred twenty-seven thousand, nine hundred forty-seven".