350709989 has 8 divisors (see below), whose sum is σ = 401034240. Its totient is φ = 300441456.

The previous prime is 350709973. The next prime is 350709991. The reversal of 350709989 is 989907053.

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

It is not a de Polignac number, because 350709989 - 2⁴ = 350709973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350709389) 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, 572 + ... + 26490.

It is an arithmetic number, because the mean of its divisors is an integer number (50129280).

Almost surely, 2^350709989 is an apocalyptic number.

It is an amenable number.

350709989 is a deficient number, since it is larger than the sum of its proper divisors (50324251).

350709989 is a wasteful number, since it uses less digits than its factorization.

350709989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27859.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 350709989 is about 18727.2525747906. The cubic root of 350709989 is about 705.2060755986.

The spelling of 350709989 in words is "three hundred fifty million, seven hundred nine thousand, nine hundred eighty-nine".