88573991 has 32 divisors (see below), whose sum is σ = 106168320. Its totient is φ = 73029600.

The previous prime is 88573973. The next prime is 88573993. The reversal of 88573991 is 19937588.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88573991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88573993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697370 + ... + 697496.

It is an arithmetic number, because the mean of its divisors is an integer number (3317760).

Almost surely, 2^88573991 is an apocalyptic number.

88573991 is a deficient number, since it is larger than the sum of its proper divisors (17594329).

88573991 is a wasteful number, since it uses less digits than its factorization.

88573991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its digits is 544320, while the sum is 50.

The square root of 88573991 is about 9411.3756167736. The cubic root of 88573991 is about 445.7610022777.

The spelling of 88573991 in words is "eighty-eight million, five hundred seventy-three thousand, nine hundred ninety-one".