80860779 has 6 divisors (see below), whose sum is σ = 116798916. Its totient is φ = 53907180.

The previous prime is 80860777. The next prime is 80860781. The reversal of 80860779 is 97706808.

It is an interprime number because it is at equal distance from previous prime (80860777) and next prime (80860781).

It is not a de Polignac number, because 80860779 - 2¹ = 80860777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80860777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4492257 + ... + 4492274.

It is an arithmetic number, because the mean of its divisors is an integer number (19466486).

Almost surely, 2^80860779 is an apocalyptic number.

80860779 is a deficient number, since it is larger than the sum of its proper divisors (35938137).

80860779 is a wasteful number, since it uses less digits than its factorization.

80860779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984537 (or 8984534 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 80860779 is about 8992.2621736691. The cubic root of 80860779 is about 432.4268382823.

The spelling of 80860779 in words is "eighty million, eight hundred sixty thousand, seven hundred seventy-nine".