397623017270 has 8 divisors (see below), whose sum is σ = 715721431104. Its totient is φ = 159049206904.

The previous prime is 397623017249. The next prime is 397623017273. The reversal of 397623017270 is 72710326793.

It is a happy number.

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 (397623017273) 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, 19881150854 + ... + 19881150873.

It is an arithmetic number, because the mean of its divisors is an integer number (89465178888).

Almost surely, 2^397623017270 is an apocalyptic number.

397623017270 is a deficient number, since it is larger than the sum of its proper divisors (318098413834).

397623017270 is a wasteful number, since it uses less digits than its factorization.

397623017270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39762301734.

The product of its (nonzero) digits is 666792, while the sum is 47.

The spelling of 397623017270 in words is "three hundred ninety-seven billion, six hundred twenty-three million, seventeen thousand, two hundred seventy".