397213236245 has 32 divisors (see below), whose sum is σ = 578400652800. Its totient is φ = 255638532096.

The previous prime is 397213236221. The next prime is 397213236269. The reversal of 397213236245 is 542632312793.

It is an interprime number because it is at equal distance from previous prime (397213236221) and next prime (397213236269).

It is a cyclic number.

It is not a de Polignac number, because 397213236245 - 2¹⁴ = 397213219861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397213236245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 716180 + ... + 1143389.

It is an arithmetic number, because the mean of its divisors is an integer number (18075020400).

Almost surely, 2^397213236245 is an apocalyptic number.

397213236245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

397213236245 is a deficient number, since it is larger than the sum of its proper divisors (181187416555).

397213236245 is a wasteful number, since it uses less digits than its factorization.

397213236245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859957.

The product of its digits is 1632960, while the sum is 47.

The spelling of 397213236245 in words is "three hundred ninety-seven billion, two hundred thirteen million, two hundred thirty-six thousand, two hundred forty-five".