397086895 has 4 divisors (see below), whose sum is σ = 476504280. Its totient is φ = 317669512.

The previous prime is 397086887. The next prime is 397086917. The reversal of 397086895 is 598680793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 397086895 - 2³ = 397086887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39708685 + ... + 39708694.

It is an arithmetic number, because the mean of its divisors is an integer number (119126070).

Almost surely, 2^397086895 is an apocalyptic number.

397086895 is a deficient number, since it is larger than the sum of its proper divisors (79417385).

397086895 is an equidigital number, since it uses as much as digits as its factorization.

397086895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79417384.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 397086895 is about 19927.0392933822. The cubic root of 397086895 is about 735.0132781781.

The spelling of 397086895 in words is "three hundred ninety-seven million, eighty-six thousand, eight hundred ninety-five".