91589952 has 28 divisors (see below), whose sum is σ = 242332256. Its totient is φ = 30529920.

The previous prime is 91589951. The next prime is 91589959. The reversal of 91589952 is 25998519.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91589951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238324 + ... + 238707.

Almost surely, 2^91589952 is an apocalyptic number.

It is an amenable number.

91589952 is an abundant number, since it is smaller than the sum of its proper divisors (150742304).

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

91589952 is a wasteful number, since it uses less digits than its factorization.

91589952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477046 (or 477036 counting only the distinct ones).

The product of its digits is 291600, while the sum is 48.

The square root of 91589952 is about 9570.2639462034. The cubic root of 91589952 is about 450.7640550630.

It can be divided in two parts, 9158 and 9952, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 91589952 in words is "ninety-one million, five hundred eighty-nine thousand, nine hundred fifty-two".