397914783 has 16 divisors (see below), whose sum is σ = 606650880. Its totient is φ = 227265696.

The previous prime is 397914757. The next prime is 397914823. The reversal of 397914783 is 387419793.

It is not a de Polignac number, because 397914783 - 2¹³ = 397906591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397914683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56238 + ... + 62916.

It is an arithmetic number, because the mean of its divisors is an integer number (37915680).

Almost surely, 2^397914783 is an apocalyptic number.

397914783 is a deficient number, since it is larger than the sum of its proper divisors (208736097).

397914783 is a wasteful number, since it uses less digits than its factorization.

397914783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526.

The product of its digits is 1143072, while the sum is 51.

The square root of 397914783 is about 19947.8014578048. The cubic root of 397914783 is about 735.5237342652.

The spelling of 397914783 in words is "three hundred ninety-seven million, nine hundred fourteen thousand, seven hundred eighty-three".