397825101 has 20 divisors (see below), whose sum is σ = 594820512. Its totient is φ = 264976488.

The previous prime is 397825069. The next prime is 397825151. The reversal of 397825101 is 101528793.

It is not a de Polignac number, because 397825101 - 2⁵ = 397825069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397825151) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 162976 + ... + 165398.

Almost surely, 2^397825101 is an apocalyptic number.

It is an amenable number.

397825101 is a deficient number, since it is larger than the sum of its proper divisors (196995411).

397825101 is a wasteful number, since it uses less digits than its factorization.

397825101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 397825101 is about 19945.5534142325. The cubic root of 397825101 is about 735.4684726877.

The spelling of 397825101 in words is "three hundred ninety-seven million, eight hundred twenty-five thousand, one hundred one".