397667852 has 6 divisors (see below), whose sum is σ = 695918748. Its totient is φ = 198833924.

The previous prime is 397667849. The next prime is 397667867. The reversal of 397667852 is 258766793.

It is a junction number, because it is equal to n+sod(n) for n = 397667794 and 397667803.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49708478 + ... + 49708485.

It is an arithmetic number, because the mean of its divisors is an integer number (115986458).

Almost surely, 2^397667852 is an apocalyptic number.

It is an amenable number.

397667852 is a deficient number, since it is larger than the sum of its proper divisors (298250896).

397667852 is a wasteful number, since it uses less digits than its factorization.

397667852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99416967 (or 99416965 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 53.

The square root of 397667852 is about 19941.6110683164. The cubic root of 397667852 is about 735.3715566285.

The spelling of 397667852 in words is "three hundred ninety-seven million, six hundred sixty-seven thousand, eight hundred fifty-two".