885081979 has 2 divisors, whose sum is σ = 885081980. Its totient is φ = 885081978.

The previous prime is 885081947. The next prime is 885081983. The reversal of 885081979 is 979180588.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 885081979 - 2⁵ = 885081947 is a prime.

It is not a weakly prime, because it can be changed into another prime (885081919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442540989 + 442540990.

It is an arithmetic number, because the mean of its divisors is an integer number (442540990).

Almost surely, 2^885081979 is an apocalyptic number.

885081979 is a deficient number, since it is larger than the sum of its proper divisors (1).

885081979 is an equidigital number, since it uses as much as digits as its factorization.

885081979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 55.

The square root of 885081979 is about 29750.3273763500. The cubic root of 885081979 is about 960.1251207722.

The spelling of 885081979 in words is "eight hundred eighty-five million, eighty-one thousand, nine hundred seventy-nine".