397081351 has 8 divisors (see below), whose sum is σ = 407723904. Its totient is φ = 386484480.

The previous prime is 397081337. The next prime is 397081357. The reversal of 397081351 is 153180793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397081351 - 2⁵ = 397081319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397081351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397081357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6570 + ... + 28936.

It is an arithmetic number, because the mean of its divisors is an integer number (50965488).

Almost surely, 2^397081351 is an apocalyptic number.

397081351 is a deficient number, since it is larger than the sum of its proper divisors (10642553).

397081351 is a wasteful number, since it uses less digits than its factorization.

397081351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22841.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 397081351 is about 19926.9001854277. The cubic root of 397081351 is about 735.0098574888.

The spelling of 397081351 in words is "three hundred ninety-seven million, eighty-one thousand, three hundred fifty-one".