396566415 has 64 divisors (see below), whose sum is σ = 831774720. Its totient is φ = 175426560.

The previous prime is 396566411. The next prime is 396566419. The reversal of 396566415 is 514665693.

It is an interprime number because it is at equal distance from previous prime (396566411) and next prime (396566419).

It is not a de Polignac number, because 396566415 - 2² = 396566411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396566411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22527 + ... + 36063.

It is an arithmetic number, because the mean of its divisors is an integer number (12996480).

Almost surely, 2^396566415 is an apocalyptic number.

396566415 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

396566415 is an abundant number, since it is smaller than the sum of its proper divisors (435208305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396566415 is a wasteful number, since it uses less digits than its factorization.

396566415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589 (or 13583 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 396566415 is about 19913.9753690718. The cubic root of 396566415 is about 734.6919992306.

The spelling of 396566415 in words is "three hundred ninety-six million, five hundred sixty-six thousand, four hundred fifteen".