79734739 has 4 divisors (see below), whose sum is σ = 91125424. Its totient is φ = 68344056.

The previous prime is 79734731. The next prime is 79734751. The reversal of 79734739 is 93743797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79734739 - 2³ = 79734731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79734692 and 79734701.

It is not an unprimeable number, because it can be changed into a prime (79734731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5695332 + ... + 5695345.

It is an arithmetic number, because the mean of its divisors is an integer number (22781356).

Almost surely, 2^79734739 is an apocalyptic number.

79734739 is a deficient number, since it is larger than the sum of its proper divisors (11390685).

79734739 is a wasteful number, since it uses less digits than its factorization.

79734739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11390684.

The product of its digits is 1000188, while the sum is 49.

The square root of 79734739 is about 8929.4310569039. The cubic root of 79734739 is about 430.4101710852.

The spelling of 79734739 in words is "seventy-nine million, seven hundred thirty-four thousand, seven hundred thirty-nine".