404896584977 has 2 divisors, whose sum is σ = 404896584978. Its totient is φ = 404896584976.

The previous prime is 404896584949. The next prime is 404896585057. The reversal of 404896584977 is 779485698404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404535432961 + 361152016 = 636031^2 + 19004^2 .

It is a cyclic number.

It is not a de Polignac number, because 404896584977 - 2¹⁶ = 404896519441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404896584977.

It is not a weakly prime, because it can be changed into another prime (404896584277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202448292488 + 202448292489.

It is an arithmetic number, because the mean of its divisors is an integer number (202448292489).

Almost surely, 2^404896584977 is an apocalyptic number.

It is an amenable number.

404896584977 is a deficient number, since it is larger than the sum of its proper divisors (1).

404896584977 is an equidigital number, since it uses as much as digits as its factorization.

404896584977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 487710720, while the sum is 71.

The spelling of 404896584977 in words is "four hundred four billion, eight hundred ninety-six million, five hundred eighty-four thousand, nine hundred seventy-seven".