404984997 has 6 divisors (see below), whose sum is σ = 584978342. Its totient is φ = 269989992.

The previous prime is 404984959. The next prime is 404985001. The reversal of 404984997 is 799489404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 348419556 + 56565441 = 18666^2 + 7521^2 .

It is not a de Polignac number, because 404984997 - 2¹⁰ = 404983973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404984927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22499158 + ... + 22499175.

Almost surely, 2^404984997 is an apocalyptic number.

It is an amenable number.

404984997 is a deficient number, since it is larger than the sum of its proper divisors (179993345).

404984997 is a wasteful number, since it uses less digits than its factorization.

404984997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44998339 (or 44998336 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 404984997 is about 20124.2390415141. The cubic root of 404984997 is about 739.8544862407.

The spelling of 404984997 in words is "four hundred four million, nine hundred eighty-four thousand, nine hundred ninety-seven".