397385782 has 8 divisors (see below), whose sum is σ = 616633200. Its totient is φ = 191841384.

The previous prime is 397385767. The next prime is 397385783. The reversal of 397385782 is 287583793.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397385783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425682 + ... + 3425797.

It is an arithmetic number, because the mean of its divisors is an integer number (77079150).

Almost surely, 2^397385782 is an apocalyptic number.

397385782 is a deficient number, since it is larger than the sum of its proper divisors (219247418).

397385782 is a wasteful number, since it uses less digits than its factorization.

397385782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6851510.

The product of its digits is 2540160, while the sum is 52.

The square root of 397385782 is about 19934.5374162532. The cubic root of 397385782 is about 735.1976465706.

The spelling of 397385782 in words is "three hundred ninety-seven million, three hundred eighty-five thousand, seven hundred eighty-two".