397739366 has 8 divisors (see below), whose sum is σ = 596728920. Its totient is φ = 198829728.

The previous prime is 397739351. The next prime is 397739387. The reversal of 397739366 is 663937793.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5411 + ... + 28718.

It is an arithmetic number, because the mean of its divisors is an integer number (74591115).

Almost surely, 2^397739366 is an apocalyptic number.

397739366 is a deficient number, since it is larger than the sum of its proper divisors (198989554).

397739366 is a wasteful number, since it uses less digits than its factorization.

397739366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39958.

The product of its digits is 3857868, while the sum is 53.

The square root of 397739366 is about 19943.4040725248. The cubic root of 397739366 is about 735.4156354656.

The spelling of 397739366 in words is "three hundred ninety-seven million, seven hundred thirty-nine thousand, three hundred sixty-six".