79769749 has 8 divisors (see below), whose sum is σ = 82620000. Its totient is φ = 76926192.

The previous prime is 79769719. The next prime is 79769759. The reversal of 79769749 is 94796797.

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

It is a cyclic number.

It is not a de Polignac number, because 79769749 - 2⁹ = 79769237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79769693 and 79769702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79769719) 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, 46102 + ... + 47800.

It is an arithmetic number, because the mean of its divisors is an integer number (10327500).

Almost surely, 2^79769749 is an apocalyptic number.

It is an amenable number.

79769749 is a deficient number, since it is larger than the sum of its proper divisors (2850251).

79769749 is a wasteful number, since it uses less digits than its factorization.

79769749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347.

The product of its digits is 6001128, while the sum is 58.

The square root of 79769749 is about 8931.3912130194. The cubic root of 79769749 is about 430.4731568276.

The spelling of 79769749 in words is "seventy-nine million, seven hundred sixty-nine thousand, seven hundred forty-nine".