390631029197 has 8 divisors (see below), whose sum is σ = 398872529976. Its totient is φ = 382467647232.

The previous prime is 390631029179. The next prime is 390631029209. The reversal of 390631029197 is 791920136093.

It can be written as a sum of positive squares in 4 ways, for example, as 96578614441 + 294052414756 = 310771^2 + 542266^2 .

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 390631029197 - 2¹⁴ = 390631012813 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 (390631029797) 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, 19519598 + ... + 19539599.

It is an arithmetic number, because the mean of its divisors is an integer number (49859066247).

Almost surely, 2^390631029197 is an apocalyptic number.

It is an amenable number.

390631029197 is a deficient number, since it is larger than the sum of its proper divisors (8241500779).

390631029197 is a wasteful number, since it uses less digits than its factorization.

390631029197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39059407.

The product of its (nonzero) digits is 551124, while the sum is 50.

The spelling of 390631029197 in words is "three hundred ninety billion, six hundred thirty-one million, twenty-nine thousand, one hundred ninety-seven".