79973427 has 8 divisors (see below), whose sum is σ = 106719120. Its totient is φ = 53271680.

The previous prime is 79973417. The next prime is 79973429. The reversal of 79973427 is 72437997.

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 79973427 - 2⁸ = 79973171 is a prime.

It is a super-2 number, since 2×79973427² = 12791498052248658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79973429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6474 + ... + 14207.

It is an arithmetic number, because the mean of its divisors is an integer number (13339890).

Almost surely, 2^79973427 is an apocalyptic number.

79973427 is a deficient number, since it is larger than the sum of its proper divisors (26745693).

79973427 is a wasteful number, since it uses less digits than its factorization.

79973427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21973.

The product of its digits is 666792, while the sum is 48.

The square root of 79973427 is about 8942.7863107647. The cubic root of 79973427 is about 430.8392245623.

The spelling of 79973427 in words is "seventy-nine million, nine hundred seventy-three thousand, four hundred twenty-seven".