91625097 has 8 divisors (see below), whose sum is σ = 122282944. Its totient is φ = 61025328.

The previous prime is 91625089. The next prime is 91625099. The reversal of 91625097 is 79052619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91625097 - 2³ = 91625089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91625099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10693 + ... + 17250.

It is an arithmetic number, because the mean of its divisors is an integer number (15285368).

Almost surely, 2^91625097 is an apocalyptic number.

It is an amenable number.

91625097 is a deficient number, since it is larger than the sum of its proper divisors (30657847).

91625097 is a wasteful number, since it uses less digits than its factorization.

91625097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29039.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 91625097 is about 9572.0999263484. The cubic root of 91625097 is about 450.8217035877.

The spelling of 91625097 in words is "ninety-one million, six hundred twenty-five thousand, ninety-seven".