352999661 has 16 divisors (see below), whose sum is σ = 408777600. Its totient is φ = 298582848.

The previous prime is 352999637. The next prime is 352999667. The reversal of 352999661 is 166999253.

It is a cyclic number.

It is not a de Polignac number, because 352999661 - 2⁶ = 352999597 is a prime.

It is a super-2 number, since 2×352999661² = 249217521332229842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352999667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222770 + ... + 224348.

It is an arithmetic number, because the mean of its divisors is an integer number (25548600).

Almost surely, 2^352999661 is an apocalyptic number.

It is an amenable number.

352999661 is a deficient number, since it is larger than the sum of its proper divisors (55777939).

352999661 is a wasteful number, since it uses less digits than its factorization.

352999661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its digits is 787320, while the sum is 50.

The square root of 352999661 is about 18788.2852064791. The cubic root of 352999661 is about 706.7374352360.

The spelling of 352999661 in words is "three hundred fifty-two million, nine hundred ninety-nine thousand, six hundred sixty-one".