397461293 has 4 divisors (see below), whose sum is σ = 398876028. Its totient is φ = 396046560.

The previous prime is 397461277. The next prime is 397461371. The reversal of 397461293 is 392164793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 233570089 + 163891204 = 15283^2 + 12802^2 .

It is a cyclic number.

It is not a de Polignac number, because 397461293 - 2⁴ = 397461277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397461593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706946 + ... + 707507.

It is an arithmetic number, because the mean of its divisors is an integer number (99719007).

Almost surely, 2^397461293 is an apocalyptic number.

It is an amenable number.

397461293 is a deficient number, since it is larger than the sum of its proper divisors (1414735).

397461293 is a wasteful number, since it uses less digits than its factorization.

397461293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414734.

The product of its digits is 244944, while the sum is 44.

The square root of 397461293 is about 19936.4313005111. The cubic root of 397461293 is about 735.2442108884.

The spelling of 397461293 in words is "three hundred ninety-seven million, four hundred sixty-one thousand, two hundred ninety-three".