91553364 has 216 divisors, whose sum is σ = 295783488. Its totient is φ = 23708160.

The previous prime is 91553359. The next prime is 91553383. The reversal of 91553364 is 46335519.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1289449 + ... + 1289519.

It is an arithmetic number, because the mean of its divisors is an integer number (1369368).

Almost surely, 2^91553364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91553364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147891744).

91553364 is an abundant number, since it is smaller than the sum of its proper divisors (204230124).

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

91553364 is a wasteful number, since it uses less digits than its factorization.

91553364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 143 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 91553364 is about 9568.3522092364. The cubic root of 91553364 is about 450.7040239078.

The spelling of 91553364 in words is "ninety-one million, five hundred fifty-three thousand, three hundred sixty-four".