397625575 has 6 divisors (see below), whose sum is σ = 493055744. Its totient is φ = 318100440.

The previous prime is 397625573. The next prime is 397625581. The reversal of 397625575 is 575526793.

It is not a de Polignac number, because 397625575 - 2¹ = 397625573 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 (397625573) 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 5 ways as a sum of consecutive naturals, for example, 7952487 + ... + 7952536.

Almost surely, 2^397625575 is an apocalyptic number.

397625575 is a deficient number, since it is larger than the sum of its proper divisors (95430169).

397625575 is a wasteful number, since it uses less digits than its factorization.

397625575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905033 (or 15905028 counting only the distinct ones).

The product of its digits is 1984500, while the sum is 49.

The square root of 397625575 is about 19940.5510204708. The cubic root of 397625575 is about 735.3454960146.

The spelling of 397625575 in words is "three hundred ninety-seven million, six hundred twenty-five thousand, five hundred seventy-five".