402936197 has 4 divisors (see below), whose sum is σ = 407463660. Its totient is φ = 398408736.

The previous prime is 402936181. The next prime is 402936223. The reversal of 402936197 is 791639204.

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 204661636 + 198274561 = 14306^2 + 14081^2 .

It is a cyclic number.

It is not a de Polignac number, because 402936197 - 2⁴ = 402936181 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 (402936137) 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, 2263598 + ... + 2263775.

It is an arithmetic number, because the mean of its divisors is an integer number (101865915).

Almost surely, 2^402936197 is an apocalyptic number.

It is an amenable number.

402936197 is a deficient number, since it is larger than the sum of its proper divisors (4527463).

402936197 is an equidigital number, since it uses as much as digits as its factorization.

402936197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527462.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 402936197 is about 20073.2707100761. The cubic root of 402936197 is about 738.6047467568.

The spelling of 402936197 in words is "four hundred two million, nine hundred thirty-six thousand, one hundred ninety-seven".