79371421 has 8 divisors (see below), whose sum is σ = 81347904. Its totient is φ = 77400960.

The previous prime is 79371407. The next prime is 79371427. The reversal of 79371421 is 12417397.

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 79371421 - 2⁵ = 79371389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79371427) 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, 37101 + ... + 39181.

It is an arithmetic number, because the mean of its divisors is an integer number (10168488).

Almost surely, 2^79371421 is an apocalyptic number.

It is an amenable number.

79371421 is a deficient number, since it is larger than the sum of its proper divisors (1976483).

79371421 is a wasteful number, since it uses less digits than its factorization.

79371421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its digits is 10584, while the sum is 34.

The square root of 79371421 is about 8909.0639800150. The cubic root of 79371421 is about 429.7554423323.

The spelling of 79371421 in words is "seventy-nine million, three hundred seventy-one thousand, four hundred twenty-one".