80879747 has 8 divisors (see below), whose sum is σ = 87171840. Its totient is φ = 74597760.

The previous prime is 80879741. The next prime is 80879767. The reversal of 80879747 is 74797808.

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 80879747 - 2¹⁰ = 80878723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80879695 and 80879704.

It is not an unprimeable number, because it can be changed into a prime (80879741) 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, 26654 + ... + 29532.

It is an arithmetic number, because the mean of its divisors is an integer number (10896480).

Almost surely, 2^80879747 is an apocalyptic number.

80879747 is a deficient number, since it is larger than the sum of its proper divisors (6292093).

80879747 is a wasteful number, since it uses less digits than its factorization.

80879747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 80879747 is about 8993.3167963772. The cubic root of 80879747 is about 432.4606479616.

The spelling of 80879747 in words is "eighty million, eight hundred seventy-nine thousand, seven hundred forty-seven".