91679625 has 48 divisors (see below), whose sum is σ = 166458240. Its totient is φ = 48544800.

The previous prime is 91679611. The next prime is 91679629. The reversal of 91679625 is 52697619.

It is a happy number.

91679625 is a `hidden beast` number, since 9 + 16 + 7 + 9 + 625 = 666.

It is not a de Polignac number, because 91679625 - 2⁵ = 91679593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (91679629) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255196 + ... + 255554.

It is an arithmetic number, because the mean of its divisors is an integer number (3467880).

Almost surely, 2^91679625 is an apocalyptic number.

It is an amenable number.

91679625 is a deficient number, since it is larger than the sum of its proper divisors (74778615).

91679625 is a wasteful number, since it uses less digits than its factorization.

91679625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 594 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 91679625 is about 9574.9477805365. The cubic root of 91679625 is about 450.9111169754.

The spelling of 91679625 in words is "ninety-one million, six hundred seventy-nine thousand, six hundred twenty-five".