397143562 has 8 divisors (see below), whose sum is σ = 630757476. Its totient is φ = 186891072.

The previous prime is 397143547. The next prime is 397143563. The reversal of 397143562 is 265341793.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 366684201 + 30459361 = 19149^2 + 5519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (397143563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840313 + ... + 5840380.

Almost surely, 2^397143562 is an apocalyptic number.

397143562 is a deficient number, since it is larger than the sum of its proper divisors (233613914).

397143562 is a wasteful number, since it uses less digits than its factorization.

397143562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11680712.

The product of its digits is 136080, while the sum is 40.

The square root of 397143562 is about 19928.4611046613. The cubic root of 397143562 is about 735.0482403126.

The spelling of 397143562 in words is "three hundred ninety-seven million, one hundred forty-three thousand, five hundred sixty-two".