397616699 has 4 divisors (see below), whose sum is σ = 401553600. Its totient is φ = 393679800.

The previous prime is 397616683. The next prime is 397616707. The reversal of 397616699 is 996616793.

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 397616699 - 2⁴ = 397616683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397616669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968299 + ... + 1968500.

It is an arithmetic number, because the mean of its divisors is an integer number (100388400).

Almost surely, 2^397616699 is an apocalyptic number.

397616699 is a deficient number, since it is larger than the sum of its proper divisors (3936901).

397616699 is a wasteful number, since it uses less digits than its factorization.

397616699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936900.

The product of its digits is 3306744, while the sum is 56.

The square root of 397616699 is about 19940.3284576759. The cubic root of 397616699 is about 735.3400243887.

The spelling of 397616699 in words is "three hundred ninety-seven million, six hundred sixteen thousand, six hundred ninety-nine".