99710427 has 4 divisors (see below), whose sum is σ = 132947240. Its totient is φ = 66473616.

The previous prime is 99710419. The next prime is 99710441. The reversal of 99710427 is 72401799.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99710427 - 2³ = 99710419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99710407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16618402 + ... + 16618407.

It is an arithmetic number, because the mean of its divisors is an integer number (33236810).

Almost surely, 2^99710427 is an apocalyptic number.

99710427 is a deficient number, since it is larger than the sum of its proper divisors (33236813).

99710427 is a wasteful number, since it uses less digits than its factorization.

99710427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33236812.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 99710427 is about 9985.5108532313. The cubic root of 99710427 is about 463.7104239421.

The spelling of 99710427 in words is "ninety-nine million, seven hundred ten thousand, four hundred twenty-seven".