74677971 has 32 divisors (see below), whose sum is σ = 105937920. Its totient is φ = 46738944.

The previous prime is 74677949. The next prime is 74678003. The reversal of 74677971 is 17977647.

It is not a de Polignac number, because 74677971 - 2⁶ = 74677907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74677971.

It is not an unprimeable number, because it can be changed into a prime (74677921) 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 31 ways as a sum of consecutive naturals, for example, 660811 + ... + 660923.

It is an arithmetic number, because the mean of its divisors is an integer number (3310560).

Almost surely, 2^74677971 is an apocalyptic number.

74677971 is a deficient number, since it is larger than the sum of its proper divisors (31259949).

74677971 is a wasteful number, since it uses less digits than its factorization.

74677971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its digits is 518616, while the sum is 48.

The square root of 74677971 is about 8641.6416843098. The cubic root of 74677971 is about 421.1118894364. Note that the first 3 decimals are identical.

The spelling of 74677971 in words is "seventy-four million, six hundred seventy-seven thousand, nine hundred seventy-one".