783049979 has 2 divisors, whose sum is σ = 783049980. Its totient is φ = 783049978.

The previous prime is 783049961. The next prime is 783049991. The reversal of 783049979 is 979940387.

It is a strong prime.

It is an emirp because it is prime and its reverse (979940387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 783049979 - 2²⁴ = 766272763 is a prime.

It is a super-2 number, since 2×783049979² = 1226334539223800882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (783049919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391524989 + 391524990.

It is an arithmetic number, because the mean of its divisors is an integer number (391524990).

Almost surely, 2^783049979 is an apocalyptic number.

783049979 is a deficient number, since it is larger than the sum of its proper divisors (1).

783049979 is an equidigital number, since it uses as much as digits as its factorization.

783049979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 783049979 is about 27983.0301968890. The cubic root of 783049979 is about 921.7146579300.

The spelling of 783049979 in words is "seven hundred eighty-three million, forty-nine thousand, nine hundred seventy-nine".