397529662 has 8 divisors (see below), whose sum is σ = 603479016. Its totient is φ = 196369992.

The previous prime is 397529641. The next prime is 397529663. The reversal of 397529662 is 266925793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397529663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197213 + ... + 1197544.

It is an arithmetic number, because the mean of its divisors is an integer number (75434877).

Almost surely, 2^397529662 is an apocalyptic number.

397529662 is a deficient number, since it is larger than the sum of its proper divisors (205949354).

397529662 is a wasteful number, since it uses less digits than its factorization.

397529662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394842.

The product of its digits is 1224720, while the sum is 49.

The square root of 397529662 is about 19938.1459017633. The cubic root of 397529662 is about 735.2863659614.

The spelling of 397529662 in words is "three hundred ninety-seven million, five hundred twenty-nine thousand, six hundred sixty-two".