977484779 has 2 divisors, whose sum is σ = 977484780. Its totient is φ = 977484778.

The previous prime is 977484769. The next prime is 977484791.

977484779 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 977484779 - 2⁴ = 977484763 is a prime.

It is not a weakly prime, because it can be changed into another prime (977484749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488742389 + 488742390.

It is an arithmetic number, because the mean of its divisors is an integer number (488742390).

Almost surely, 2^977484779 is an apocalyptic number.

977484779 is a deficient number, since it is larger than the sum of its proper divisors (1).

977484779 is an equidigital number, since it uses as much as digits as its factorization.

977484779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24893568, while the sum is 62.

The square root of 977484779 is about 31264.7529815925. The cubic root of 977484779 is about 992.4378848965.

The spelling of 977484779 in words is "nine hundred seventy-seven million, four hundred eighty-four thousand, seven hundred seventy-nine".