397484690667 has 8 divisors (see below), whose sum is σ = 529982499840. Its totient is φ = 264988337640.

The previous prime is 397484690623. The next prime is 397484690677. The reversal of 397484690667 is 766096484793.

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

It is not a de Polignac number, because 397484690667 - 2¹⁴ = 397484674283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397484690677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892042 + ... + 1261232.

It is an arithmetic number, because the mean of its divisors is an integer number (66247812480).

Almost surely, 2^397484690667 is an apocalyptic number.

397484690667 is a deficient number, since it is larger than the sum of its proper divisors (132497809173).

397484690667 is a wasteful number, since it uses less digits than its factorization.

397484690667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728073.

The product of its (nonzero) digits is 329204736, while the sum is 69.

The spelling of 397484690667 in words is "three hundred ninety-seven billion, four hundred eighty-four million, six hundred ninety thousand, six hundred sixty-seven".