99691054 has 8 divisors (see below), whose sum is σ = 149769648. Its totient is φ = 49767840.

The previous prime is 99691037. The next prime is 99691087. The reversal of 99691054 is 45019699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×99691054³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99691054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37227 + ... + 39814.

It is an arithmetic number, because the mean of its divisors is an integer number (18721206).

Almost surely, 2^99691054 is an apocalyptic number.

99691054 is a deficient number, since it is larger than the sum of its proper divisors (50078594).

99691054 is a wasteful number, since it uses less digits than its factorization.

99691054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77690.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 99691054 is about 9984.5407505804. The cubic root of 99691054 is about 463.6803901593.

The spelling of 99691054 in words is "ninety-nine million, six hundred ninety-one thousand, fifty-four".