396977045 has 16 divisors (see below), whose sum is σ = 480574080. Its totient is φ = 314793024.

The previous prime is 396977011. The next prime is 396977057. The reversal of 396977045 is 540779693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396977045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396976984 and 396977002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472736 + ... + 473574.

It is an arithmetic number, because the mean of its divisors is an integer number (30035880).

Almost surely, 2^396977045 is an apocalyptic number.

It is an amenable number.

396977045 is a deficient number, since it is larger than the sum of its proper divisors (83597035).

396977045 is a wasteful number, since it uses less digits than its factorization.

396977045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 396977045 is about 19924.2827976316. The cubic root of 396977045 is about 734.9454939759.

The spelling of 396977045 in words is "three hundred ninety-six million, nine hundred seventy-seven thousand, forty-five".