79621401 has 8 divisors (see below), whose sum is σ = 106294464. Its totient is φ = 53014640.

The previous prime is 79621397. The next prime is 79621403. The reversal of 79621401 is 10412697.

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 79621401 - 2² = 79621397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79621403) 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, 13701 + ... + 18626.

It is an arithmetic number, because the mean of its divisors is an integer number (13286808).

Almost surely, 2^79621401 is an apocalyptic number.

It is an amenable number.

79621401 is a deficient number, since it is larger than the sum of its proper divisors (26673063).

79621401 is a wasteful number, since it uses less digits than its factorization.

79621401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33151.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 79621401 is about 8923.0824830885. The cubic root of 79621401 is about 430.2061405698.

The spelling of 79621401 in words is "seventy-nine million, six hundred twenty-one thousand, four hundred one".