99995457 has 8 divisors (see below), whose sum is σ = 134702176. Its totient is φ = 65976192.

The previous prime is 99995453. The next prime is 99995507. The reversal of 99995457 is 75459999.

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

It is not a de Polignac number, because 99995457 - 2² = 99995453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99995397 and 99995406.

It is not an unprimeable number, because it can be changed into a prime (99995453) 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, 171523 + ... + 172104.

It is an arithmetic number, because the mean of its divisors is an integer number (16837772).

Almost surely, 2^99995457 is an apocalyptic number.

99995457 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

99995457 is a deficient number, since it is larger than the sum of its proper divisors (34706719).

99995457 is a wasteful number, since it uses less digits than its factorization.

99995457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343727.

The product of its digits is 4592700, while the sum is 57.

The square root of 99995457 is about 9999.7728474201. The cubic root of 99995457 is about 464.1518543421.

The spelling of 99995457 in words is "ninety-nine million, nine hundred ninety-five thousand, four hundred fifty-seven".