390107861 has 8 divisors (see below), whose sum is σ = 458308704. Its totient is φ = 327363120.

The previous prime is 390107843. The next prime is 390107869. The reversal of 390107861 is 168701093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390107861 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 (390107869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363871 + ... + 1364156.

It is an arithmetic number, because the mean of its divisors is an integer number (57288588).

Almost surely, 2^390107861 is an apocalyptic number.

It is an amenable number.

390107861 is a deficient number, since it is larger than the sum of its proper divisors (68200843).

390107861 is a wasteful number, since it uses less digits than its factorization.

390107861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728051.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 390107861 is about 19751.1483463620. The cubic root of 390107861 is about 730.6817057237.

The spelling of 390107861 in words is "three hundred ninety million, one hundred seven thousand, eight hundred sixty-one".