79901427 has 8 divisors (see below), whose sum is σ = 107076816. Its totient is φ = 52996832.

The previous prime is 79901401. The next prime is 79901429. The reversal of 79901427 is 72410997.

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 79901427 - 2¹⁸ = 79639283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79901429) 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, 67008 + ... + 68189.

It is an arithmetic number, because the mean of its divisors is an integer number (13384602).

Almost surely, 2^79901427 is an apocalyptic number.

79901427 is a deficient number, since it is larger than the sum of its proper divisors (27175389).

79901427 is a wasteful number, since it uses less digits than its factorization.

79901427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135397.

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

The square root of 79901427 is about 8938.7598133074. The cubic root of 79901427 is about 430.7098910273.

The spelling of 79901427 in words is "seventy-nine million, nine hundred one thousand, four hundred twenty-seven".