89942571 has 24 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 58968576.

The previous prime is 89942533. The next prime is 89942617. The reversal of 89942571 is 17524998.

89942571 = 439² + 440² + ... + 707².

It is not a de Polignac number, because 89942571 - 2⁶ = 89942507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89942521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234646 + ... + 235028.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^89942571 is an apocalyptic number.

89942571 is a deficient number, since it is larger than the sum of its proper divisors (42145749).

89942571 is a wasteful number, since it uses less digits than its factorization.

89942571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 752 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 89942571 is about 9483.8057234425. The cubic root of 89942571 is about 448.0451348951.

The spelling of 89942571 in words is "eighty-nine million, nine hundred forty-two thousand, five hundred seventy-one".