390948903 has 8 divisors (see below), whose sum is σ = 579183600. Its totient is φ = 260632584.

The previous prime is 390948869. The next prime is 390948907. The reversal of 390948903 is 309849093.

It is not a de Polignac number, because 390948903 - 2⁶ = 390948839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390948907) 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, 7239768 + ... + 7239821.

It is an arithmetic number, because the mean of its divisors is an integer number (72397950).

Almost surely, 2^390948903 is an apocalyptic number.

390948903 is a deficient number, since it is larger than the sum of its proper divisors (188234697).

390948903 is a wasteful number, since it uses less digits than its factorization.

390948903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14479598 (or 14479592 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 390948903 is about 19772.4278478896. The cubic root of 390948903 is about 731.2064263319.

The spelling of 390948903 in words is "three hundred ninety million, nine hundred forty-eight thousand, nine hundred three".