79629943 has 4 divisors (see below), whose sum is σ = 79686720. Its totient is φ = 79573168.

The previous prime is 79629899. The next prime is 79630013. The reversal of 79629943 is 34992697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34992697 = 293 ⋅119429.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79629943 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 (79624943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26230 + ... + 29107.

It is an arithmetic number, because the mean of its divisors is an integer number (19921680).

Almost surely, 2^79629943 is an apocalyptic number.

79629943 is a deficient number, since it is larger than the sum of its proper divisors (56777).

79629943 is a wasteful number, since it uses less digits than its factorization.

79629943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56776.

The product of its digits is 734832, while the sum is 49.

The square root of 79629943 is about 8923.5611165050. The cubic root of 79629943 is about 430.2215245805.

The spelling of 79629943 in words is "seventy-nine million, six hundred twenty-nine thousand, nine hundred forty-three".