71654972 has 12 divisors (see below), whose sum is σ = 125460216. Its totient is φ = 35809200.

The previous prime is 71654971. The next prime is 71655013. The reversal of 71654972 is 27945617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71654971) 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 3 ways as a sum of consecutive naturals, for example, 8222 + ... + 14522.

It is an arithmetic number, because the mean of its divisors is an integer number (10455018).

Almost surely, 2^71654972 is an apocalyptic number.

It is an amenable number.

71654972 is a deficient number, since it is larger than the sum of its proper divisors (53805244).

71654972 is a wasteful number, since it uses less digits than its factorization.

71654972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9148 (or 9146 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 71654972 is about 8464.9259890444. The cubic root of 71654972 is about 415.3511751456.

The spelling of 71654972 in words is "seventy-one million, six hundred fifty-four thousand, nine hundred seventy-two".