396607225 has 27 divisors (see below), whose sum is σ = 573092877. Its totient is φ = 271481280.

The previous prime is 396607139. The next prime is 396607231. The reversal of 396607225 is 522706693.

The square root of 396607225 is 19915.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 94264681 + 302342544 = 9709^2 + 17388^2 .

It is not a de Polignac number, because 396607225 - 2¹⁷ = 396476153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 696741 + ... + 697309.

Almost surely, 2^396607225 is an apocalyptic number.

396607225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

396607225 is the 19915-th square number.

396607225 is the 9958-th centered octagonal number.

It is an amenable number.

396607225 is a deficient number, since it is larger than the sum of its proper divisors (176485652).

396607225 is an frugal number, since it uses more digits than its factorization.

396607225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The cubic root of 396607225 is about 734.7172003494.

The spelling of 396607225 in words is "three hundred ninety-six million, six hundred seven thousand, two hundred twenty-five".