79945951 has 8 divisors (see below), whose sum is σ = 84975264. Its totient is φ = 74952960.

The previous prime is 79945933. The next prime is 79945963. The reversal of 79945951 is 15954997.

79945951 = T₇₂₉₉ + T₇₃₀₀ + T₇₃₀₁.

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 79945951 - 2⁷ = 79945823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79945895 and 79945904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79945981) 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, 4470 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (10621908).

Almost surely, 2^79945951 is an apocalyptic number.

79945951 is the 4471-st decagonal number.

79945951 is the 7301-st centered triangular number.

79945951 is a deficient number, since it is larger than the sum of its proper divisors (5029313).

79945951 is a wasteful number, since it uses less digits than its factorization.

79945951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18161.

The product of its digits is 510300, while the sum is 49.

The square root of 79945951 is about 8941.2499685447. The cubic root of 79945951 is about 430.7898786111.

The spelling of 79945951 in words is "seventy-nine million, nine hundred forty-five thousand, nine hundred fifty-one".