79382643 has 4 divisors (see below), whose sum is σ = 105843528. Its totient is φ = 52921760.

The previous prime is 79382623. The next prime is 79382651. The reversal of 79382643 is 34628397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34628397 = 3 ⋅11542799.

It is a cyclic number.

It is not a de Polignac number, because 79382643 - 2⁶ = 79382579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79382595 and 79382604.

It is not an unprimeable number, because it can be changed into a prime (79382623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13230438 + ... + 13230443.

It is an arithmetic number, because the mean of its divisors is an integer number (26460882).

Almost surely, 2^79382643 is an apocalyptic number.

79382643 is a deficient number, since it is larger than the sum of its proper divisors (26460885).

79382643 is a wasteful number, since it uses less digits than its factorization.

79382643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26460884.

The product of its digits is 217728, while the sum is 42.

The square root of 79382643 is about 8909.6937657812. The cubic root of 79382643 is about 429.7756951649.

It can be divided in two parts, 793 and 82643, that added together give a triangular number (83436 = T₄₀₈).

The spelling of 79382643 in words is "seventy-nine million, three hundred eighty-two thousand, six hundred forty-three".