397275123 has 16 divisors (see below), whose sum is σ = 637233920. Its totient is φ = 215066016.

The previous prime is 397275119. The next prime is 397275139. The reversal of 397275123 is 321572793.

It is not a de Polignac number, because 397275123 - 2² = 397275119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397275103) 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, 497440 + ... + 498237.

It is an arithmetic number, because the mean of its divisors is an integer number (39827120).

Almost surely, 2^397275123 is an apocalyptic number.

397275123 is a deficient number, since it is larger than the sum of its proper divisors (239958797).

397275123 is a wasteful number, since it uses less digits than its factorization.

397275123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995706.

The product of its digits is 79380, while the sum is 39.

The square root of 397275123 is about 19931.7616632349. The cubic root of 397275123 is about 735.1293973672.

It can be divided in two parts, 39727 and 5123, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 397275123 in words is "three hundred ninety-seven million, two hundred seventy-five thousand, one hundred twenty-three".