397484591 has 16 divisors (see below), whose sum is σ = 463993920. Its totient is φ = 333484800.

The previous prime is 397484569. The next prime is 397484603. The reversal of 397484591 is 195484793.

It is a cyclic number.

It is not a de Polignac number, because 397484591 - 2¹⁸ = 397222447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397424591) 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, 59765 + ... + 66081.

It is an arithmetic number, because the mean of its divisors is an integer number (28999620).

Almost surely, 2^397484591 is an apocalyptic number.

397484591 is a deficient number, since it is larger than the sum of its proper divisors (66509329).

397484591 is a wasteful number, since it uses less digits than its factorization.

397484591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514.

The product of its digits is 1088640, while the sum is 50.

The square root of 397484591 is about 19937.0155991312. The cubic root of 397484591 is about 735.2585765514.

The spelling of 397484591 in words is "three hundred ninety-seven million, four hundred eighty-four thousand, five hundred ninety-one".