397001282 has 4 divisors (see below), whose sum is σ = 595501926. Its totient is φ = 198500640.

The previous prime is 397001279. The next prime is 397001291. The reversal of 397001282 is 282100793.

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

It can be written as a sum of positive squares in only one way, i.e., 367527241 + 29474041 = 19171^2 + 5429^2 .

It is a super-2 number, since 2×397001282² = 315220035819287048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99250319 + ... + 99250322.

Almost surely, 2^397001282 is an apocalyptic number.

397001282 is a deficient number, since it is larger than the sum of its proper divisors (198500644).

397001282 is a wasteful number, since it uses less digits than its factorization.

397001282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198500643.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 397001282 is about 19924.8910160131. The cubic root of 397001282 is about 734.9604507697.

The spelling of 397001282 in words is "three hundred ninety-seven million, one thousand, two hundred eighty-two".