99391454 has 8 divisors (see below), whose sum is σ = 149263320. Its totient is φ = 49637016.

The previous prime is 99391433. The next prime is 99391463. The reversal of 99391454 is 45419399.

It is a happy number.

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

It is a super-2 number, since 2×99391454² = 19757322256468232, which contains 22 as substring.

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, 27209 + ... + 30644.

It is an arithmetic number, because the mean of its divisors is an integer number (18657915).

Almost surely, 2^99391454 is an apocalyptic number.

99391454 is a deficient number, since it is larger than the sum of its proper divisors (49871866).

99391454 is a wasteful number, since it uses less digits than its factorization.

99391454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58714.

The product of its digits is 174960, while the sum is 44.

The square root of 99391454 is about 9969.5262675816. The cubic root of 99391454 is about 463.2154268703.

The spelling of 99391454 in words is "ninety-nine million, three hundred ninety-one thousand, four hundred fifty-four".