79709497 has 8 divisors (see below), whose sum is σ = 91420736. Its totient is φ = 68079312.

The previous prime is 79709489. The next prime is 79709521. The reversal of 79709497 is 79490797.

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

It is not a de Polignac number, because 79709497 - 2³ = 79709489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79709407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18138 + ... + 22099.

It is an arithmetic number, because the mean of its divisors is an integer number (11427592).

Almost surely, 2^79709497 is an apocalyptic number.

It is an amenable number.

79709497 is a deficient number, since it is larger than the sum of its proper divisors (11711239).

79709497 is a wasteful number, since it uses less digits than its factorization.

79709497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40527.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 79709497 is about 8928.0175291047. The cubic root of 79709497 is about 430.3647473032.

The spelling of 79709497 in words is "seventy-nine million, seven hundred nine thousand, four hundred ninety-seven".