79963789 has 8 divisors (see below), whose sum is σ = 81960032. Its totient is φ = 77973840.

The previous prime is 79963783. The next prime is 79963813. The reversal of 79963789 is 98736997.

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 79963789 - 2⁷ = 79963661 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 (79963783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33727 + ... + 36019.

It is an arithmetic number, because the mean of its divisors is an integer number (10245004).

Almost surely, 2^79963789 is an apocalyptic number.

It is an amenable number.

79963789 is a deficient number, since it is larger than the sum of its proper divisors (1996243).

79963789 is a wasteful number, since it uses less digits than its factorization.

79963789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147.

The product of its digits is 5143824, while the sum is 58.

The square root of 79963789 is about 8942.2474244454. The cubic root of 79963789 is about 430.8219163328.

The spelling of 79963789 in words is "seventy-nine million, nine hundred sixty-three thousand, seven hundred eighty-nine".