397982095 has 16 divisors (see below), whose sum is σ = 552384000. Its totient is φ = 269612064.

The previous prime is 397982063. The next prime is 397982099. The reversal of 397982095 is 590289793.

It is a cyclic number.

It is not a de Polignac number, because 397982095 - 2⁵ = 397982063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397982099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65595 + ... + 71404.

It is an arithmetic number, because the mean of its divisors is an integer number (34524000).

Almost surely, 2^397982095 is an apocalyptic number.

397982095 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

397982095 is a deficient number, since it is larger than the sum of its proper divisors (154401905).

397982095 is a wasteful number, since it uses less digits than its factorization.

397982095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137094.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 397982095 is about 19949.4885899363. The cubic root of 397982095 is about 735.5652061114.

The spelling of 397982095 in words is "three hundred ninety-seven million, nine hundred eighty-two thousand, ninety-five".