396467687 has 16 divisors (see below), whose sum is σ = 494733312. Its totient is φ = 308663520.

The previous prime is 396467681. The next prime is 396467689. The reversal of 396467687 is 786764693.

It is a happy number.

It is not a de Polignac number, because 396467687 - 2¹² = 396463591 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 (396467681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168773 + ... + 171105.

It is an arithmetic number, because the mean of its divisors is an integer number (30920832).

Almost surely, 2^396467687 is an apocalyptic number.

396467687 is a deficient number, since it is larger than the sum of its proper divisors (98265625).

396467687 is a wasteful number, since it uses less digits than its factorization.

396467687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558.

The product of its digits is 9144576, while the sum is 56.

The square root of 396467687 is about 19911.4963526100. The cubic root of 396467687 is about 734.6310252557.

The spelling of 396467687 in words is "three hundred ninety-six million, four hundred sixty-seven thousand, six hundred eighty-seven".