99691260 has 36 divisors (see below), whose sum is σ = 279352248. Its totient is φ = 26563712.

The previous prime is 99691253. The next prime is 99691279. The reversal of 99691260 is 6219699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76696 + ... + 77984.

Almost surely, 2^99691260 is an apocalyptic number.

It is an amenable number.

99691260 is an abundant number, since it is smaller than the sum of its proper divisors (179660988).

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

99691260 is a wasteful number, since it uses less digits than its factorization.

99691260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 99691260 is about 9984.5510665227. The cubic root of 99691260 is about 463.6807095397.

The spelling of 99691260 in words is "ninety-nine million, six hundred ninety-one thousand, two hundred sixty".