71524668 has 12 divisors (see below), whose sum is σ = 166890920. Its totient is φ = 23841552.

The previous prime is 71524667. The next prime is 71524727. The reversal of 71524668 is 86642517.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71524667) 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 3 ways as a sum of consecutive naturals, for example, 2980183 + ... + 2980206.

Almost surely, 2^71524668 is an apocalyptic number.

It is an amenable number.

71524668 is an abundant number, since it is smaller than the sum of its proper divisors (95366252).

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

71524668 is a wasteful number, since it uses less digits than its factorization.

71524668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960396 (or 5960394 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 71524668 is about 8457.2257862729. The cubic root of 71524668 is about 415.0992514341.

The spelling of 71524668 in words is "seventy-one million, five hundred twenty-four thousand, six hundred sixty-eight".