91797150 has 48 divisors (see below), whose sum is σ = 228271104. Its totient is φ = 24413280.

The previous prime is 91797143. The next prime is 91797179. The reversal of 91797150 is 5179719.

It is a junction number, because it is equal to n+sod(n) for n = 91797099 and 91797108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83907 + ... + 84993.

It is an arithmetic number, because the mean of its divisors is an integer number (4755648).

Almost surely, 2^91797150 is an apocalyptic number.

91797150 is an abundant number, since it is smaller than the sum of its proper divisors (136473954).

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

91797150 is a wasteful number, since it uses less digits than its factorization.

91797150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 91797150 is about 9581.0829241793. The cubic root of 91797150 is about 451.1037104803.

The spelling of 91797150 in words is "ninety-one million, seven hundred ninety-seven thousand, one hundred fifty".