350666397 has 12 divisors (see below), whose sum is σ = 507347100. Its totient is φ = 233395008.

The previous prime is 350666359. The next prime is 350666401. The reversal of 350666397 is 793666053.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 309372921 = 6426^2 + 17589^2 .

It is not a de Polignac number, because 350666397 - 2¹⁰ = 350665373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350664397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26022 + ... + 37127.

It is an arithmetic number, because the mean of its divisors is an integer number (42278925).

Almost surely, 2^350666397 is an apocalyptic number.

It is an amenable number.

350666397 is a deficient number, since it is larger than the sum of its proper divisors (156680703).

350666397 is a wasteful number, since it uses less digits than its factorization.

350666397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63772 (or 63769 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The square root of 350666397 is about 18726.0886732921. The cubic root of 350666397 is about 705.1768561885.

The spelling of 350666397 in words is "three hundred fifty million, six hundred sixty-six thousand, three hundred ninety-seven".