397748395 has 16 divisors (see below), whose sum is σ = 521238240. Its totient is φ = 288966400.

The previous prime is 397748389. The next prime is 397748399. The reversal of 397748395 is 593847793.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-397748395 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (397748399) 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, 57735 + ... + 64255.

It is an arithmetic number, because the mean of its divisors is an integer number (32577390).

Almost surely, 2^397748395 is an apocalyptic number.

397748395 is a deficient number, since it is larger than the sum of its proper divisors (123489845).

397748395 is a wasteful number, since it uses less digits than its factorization.

397748395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646.

The product of its digits is 5715360, while the sum is 55.

The square root of 397748395 is about 19943.6304368086. The cubic root of 397748395 is about 735.4212002635.

The spelling of 397748395 in words is "three hundred ninety-seven million, seven hundred forty-eight thousand, three hundred ninety-five".