397211855039 has 8 divisors (see below), whose sum is σ = 402042505680. Its totient is φ = 392389373376.

The previous prime is 397211855021. The next prime is 397211855093. The reversal of 397211855039 is 930558112793.

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

It is a cyclic number.

It is not a de Polignac number, because 397211855039 - 2⁸ = 397211854783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397211855099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944377 + ... + 2138930.

It is an arithmetic number, because the mean of its divisors is an integer number (50255313210).

Almost surely, 2^397211855039 is an apocalyptic number.

397211855039 is a deficient number, since it is larger than the sum of its proper divisors (4830650641).

397211855039 is a wasteful number, since it uses less digits than its factorization.

397211855039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084489.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 397211855039 in words is "three hundred ninety-seven billion, two hundred eleven million, eight hundred fifty-five thousand, thirty-nine".