390695961 has 16 divisors (see below), whose sum is σ = 531705600. Its totient is φ = 255119568.

The previous prime is 390695959. The next prime is 390695969. The reversal of 390695961 is 169596093.

It is not a de Polignac number, because 390695961 - 2¹ = 390695959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 390695961.

It is not an unprimeable number, because it can be changed into a prime (390695969) 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 15 ways as a sum of consecutive naturals, for example, 30550 + ... + 41408.

It is an arithmetic number, because the mean of its divisors is an integer number (33231600).

Almost surely, 2^390695961 is an apocalyptic number.

It is an amenable number.

390695961 is a deficient number, since it is larger than the sum of its proper divisors (141009639).

390695961 is a wasteful number, since it uses less digits than its factorization.

390695961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 390695961 is about 19766.0304816116. The cubic root of 390695961 is about 731.0486966673.

The spelling of 390695961 in words is "three hundred ninety million, six hundred ninety-five thousand, nine hundred sixty-one".