71902668 has 24 divisors (see below), whose sum is σ = 171343872. Its totient is φ = 23457424.

The previous prime is 71902667. The next prime is 71902693. The reversal of 71902668 is 86620917.

It is not an unprimeable number, because it can be changed into a prime (71902661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63180 + ... + 64307.

It is an arithmetic number, because the mean of its divisors is an integer number (7139328).

Almost surely, 2^71902668 is an apocalyptic number.

It is an amenable number.

71902668 is an abundant number, since it is smaller than the sum of its proper divisors (99441204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71902668 is a wasteful number, since it uses less digits than its factorization.

71902668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127541 (or 127539 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 71902668 is about 8479.5440915181. The cubic root of 71902668 is about 415.8292182980.

The spelling of 71902668 in words is "seventy-one million, nine hundred two thousand, six hundred sixty-eight".