91699340 has 24 divisors (see below), whose sum is σ = 195283872. Its totient is φ = 36162560.

The previous prime is 91699337. The next prime is 91699351. The reversal of 91699340 is 4399619.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30869 + ... + 33708.

It is an arithmetic number, because the mean of its divisors is an integer number (8136828).

Almost surely, 2^91699340 is an apocalyptic number.

It is an amenable number.

91699340 is an abundant number, since it is smaller than the sum of its proper divisors (103584532).

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

91699340 is a wasteful number, since it uses less digits than its factorization.

91699340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64657 (or 64655 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 91699340 is about 9575.9772347265. The cubic root of 91699340 is about 450.9434363176.

The spelling of 91699340 in words is "ninety-one million, six hundred ninety-nine thousand, three hundred forty".