350531993 has 8 divisors (see below), whose sum is σ = 424173312. Its totient is φ = 282782016.

The previous prime is 350531977. The next prime is 350531999. The reversal of 350531993 is 399135053.

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

It is a cyclic number.

It is not a de Polignac number, because 350531993 - 2⁴ = 350531977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350531999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472705 + ... + 1472942.

It is an arithmetic number, because the mean of its divisors is an integer number (53021664).

Almost surely, 2^350531993 is an apocalyptic number.

It is an amenable number.

350531993 is a deficient number, since it is larger than the sum of its proper divisors (73641319).

350531993 is a wasteful number, since it uses less digits than its factorization.

350531993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945671.

The product of its (nonzero) digits is 54675, while the sum is 38.

The square root of 350531993 is about 18722.4996461477. The cubic root of 350531993 is about 705.0867508894.

The spelling of 350531993 in words is "three hundred fifty million, five hundred thirty-one thousand, nine hundred ninety-three".