397316746 has 4 divisors (see below), whose sum is σ = 595975122. Its totient is φ = 198658372.

The previous prime is 397316723. The next prime is 397316761. The reversal of 397316746 is 647613793.

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., 257249521 + 140067225 = 16039^2 + 11835^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397316696 and 397316705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99329185 + ... + 99329188.

Almost surely, 2^397316746 is an apocalyptic number.

397316746 is a deficient number, since it is larger than the sum of its proper divisors (198658376).

397316746 is a wasteful number, since it uses less digits than its factorization.

397316746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198658375.

The product of its digits is 571536, while the sum is 46.

The square root of 397316746 is about 19932.8057733978. The cubic root of 397316746 is about 735.1550699390.

The spelling of 397316746 in words is "three hundred ninety-seven million, three hundred sixteen thousand, seven hundred forty-six".