99974857 has 8 divisors (see below), whose sum is σ = 101455200. Its totient is φ = 98502624.

The previous prime is 99974821. The next prime is 99974863. The reversal of 99974857 is 75847999.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 99974857 - 2⁷ = 99974729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99974867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25494 + ... + 29152.

It is an arithmetic number, because the mean of its divisors is an integer number (12681900).

Almost surely, 2^99974857 is an apocalyptic number.

It is an amenable number.

99974857 is a deficient number, since it is larger than the sum of its proper divisors (1480343).

99974857 is a wasteful number, since it uses less digits than its factorization.

99974857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055.

The product of its digits is 5715360, while the sum is 58.

The square root of 99974857 is about 9998.7427709688. The cubic root of 99974857 is about 464.1199789445.

The spelling of 99974857 in words is "ninety-nine million, nine hundred seventy-four thousand, eight hundred fifty-seven".