91675120 has 40 divisors (see below), whose sum is σ = 214584480. Its totient is φ = 36422400.

The previous prime is 91675117. The next prime is 91675123. The reversal of 91675120 is 2157619.

It is an interprime number because it is at equal distance from previous prime (91675117) and next prime (91675123).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91675123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8286 + ... + 15874.

It is an arithmetic number, because the mean of its divisors is an integer number (5364612).

Almost surely, 2^91675120 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 91675120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107292240).

91675120 is an abundant number, since it is smaller than the sum of its proper divisors (122909360).

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

91675120 is a wasteful number, since it uses less digits than its factorization.

91675120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753 (or 7747 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 91675120 is about 9574.7125283217. The cubic root of 91675120 is about 450.9037311546.

The spelling of 91675120 in words is "ninety-one million, six hundred seventy-five thousand, one hundred twenty".