397861295 has 16 divisors (see below), whose sum is σ = 531891360. Its totient is φ = 283672704.

The previous prime is 397861271. The next prime is 397861307. The reversal of 397861295 is 592168793.

It is a cyclic number.

It is not a de Polignac number, because 397861295 - 2⁶ = 397861231 is a prime.

It is a super-2 number, since 2×397861295² = 316587220118154050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103649 + ... + 107418.

It is an arithmetic number, because the mean of its divisors is an integer number (33243210).

Almost surely, 2^397861295 is an apocalyptic number.

397861295 is a deficient number, since it is larger than the sum of its proper divisors (134030065).

397861295 is a wasteful number, since it uses less digits than its factorization.

397861295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211114.

The product of its digits is 816480, while the sum is 50.

The square root of 397861295 is about 19946.4607136203. The cubic root of 397861295 is about 735.4907762399.

The spelling of 397861295 in words is "three hundred ninety-seven million, eight hundred sixty-one thousand, two hundred ninety-five".