79401843 has 16 divisors (see below), whose sum is σ = 118016160. Its totient is φ = 52761888.

The previous prime is 79401827. The next prime is 79401859. The reversal of 79401843 is 34810497.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (79401827) and next prime (79401859).

It is not a de Polignac number, because 79401843 - 2⁴ = 79401827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79401798 and 79401807.

It is not an unprimeable number, because it can be changed into a prime (79401143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3921 + ... + 13197.

It is an arithmetic number, because the mean of its divisors is an integer number (7376010).

Almost surely, 2^79401843 is an apocalyptic number.

79401843 is a deficient number, since it is larger than the sum of its proper divisors (38614317).

79401843 is a wasteful number, since it uses less digits than its factorization.

79401843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9603 (or 9597 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 79401843 is about 8910.7711787477. The cubic root of 79401843 is about 429.8103418158.

The spelling of 79401843 in words is "seventy-nine million, four hundred one thousand, eight hundred forty-three".