390863053 has 12 divisors (see below), whose sum is σ = 455525532. Its totient is φ = 334400640.

The previous prime is 390863017. The next prime is 390863063. The reversal of 390863053 is 350368093.

It can be written as a sum of positive squares in 2 ways, for example, as 15976009 + 374887044 = 3997^2 + 19362^2 .

It is not a de Polignac number, because 390863053 - 2⁹ = 390862541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390863063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20133 + ... + 34453.

It is an arithmetic number, because the mean of its divisors is an integer number (37960461).

Almost surely, 2^390863053 is an apocalyptic number.

It is an amenable number.

390863053 is a deficient number, since it is larger than the sum of its proper divisors (64662479).

390863053 is a wasteful number, since it uses less digits than its factorization.

390863053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14892 (or 14885 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 390863053 is about 19770.2567762789. The cubic root of 390863053 is about 731.1528995865.

The spelling of 390863053 in words is "three hundred ninety million, eight hundred sixty-three thousand, fifty-three".