731052197 has 2 divisors, whose sum is σ = 731052198. Its totient is φ = 731052196.

The previous prime is 731052169. The next prime is 731052211. The reversal of 731052197 is 791250137.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643180321 + 87871876 = 25361^2 + 9374^2 .

It is an emirp because it is prime and its reverse (791250137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 731052197 - 2¹⁴ = 731035813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (731052397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365526098 + 365526099.

It is an arithmetic number, because the mean of its divisors is an integer number (365526099).

Almost surely, 2^731052197 is an apocalyptic number.

It is an amenable number.

731052197 is a deficient number, since it is larger than the sum of its proper divisors (1).

731052197 is an equidigital number, since it uses as much as digits as its factorization.

731052197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 731052197 is about 27037.9769398526. The cubic root of 731052197 is about 900.8437342811.

The spelling of 731052197 in words is "seven hundred thirty-one million, fifty-two thousand, one hundred ninety-seven".