404015797 has 2 divisors, whose sum is σ = 404015798. Its totient is φ = 404015796.

The previous prime is 404015783. The next prime is 404015813. The reversal of 404015797 is 797510404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213189201 + 190826596 = 14601^2 + 13814^2 .

It is a cyclic number.

It is not a de Polignac number, because 404015797 - 2¹¹ = 404013749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404015707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202007898 + 202007899.

It is an arithmetic number, because the mean of its divisors is an integer number (202007899).

Almost surely, 2^404015797 is an apocalyptic number.

It is an amenable number.

404015797 is a deficient number, since it is larger than the sum of its proper divisors (1).

404015797 is an equidigital number, since it uses as much as digits as its factorization.

404015797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 404015797 is about 20100.1442034628. The cubic root of 404015797 is about 739.2638143579.

The spelling of 404015797 in words is "four hundred four million, fifteen thousand, seven hundred ninety-seven".