79739742 has 8 divisors (see below), whose sum is σ = 159479496. Its totient is φ = 26579912.

The previous prime is 79739729. The next prime is 79739743. The reversal of 79739742 is 24793797.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

79739742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 79739691 and 79739700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79739743) 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, 6644973 + ... + 6644984.

It is an arithmetic number, because the mean of its divisors is an integer number (19934937).

Almost surely, 2^79739742 is an apocalyptic number.

79739742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79739742 is a wasteful number, since it uses less digits than its factorization.

79739742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13289962.

The product of its digits is 666792, while the sum is 48.

The square root of 79739742 is about 8929.7111935381. The cubic root of 79739742 is about 430.4191730045.

The spelling of 79739742 in words is "seventy-nine million, seven hundred thirty-nine thousand, seven hundred forty-two".