350958721 has 2 divisors, whose sum is σ = 350958722. Its totient is φ = 350958720.

The previous prime is 350958701. The next prime is 350958731. The reversal of 350958721 is 127859053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260499600 + 90459121 = 16140^2 + 9511^2 .

It is a cyclic number.

It is not a de Polignac number, because 350958721 - 2⁵ = 350958689 is a prime.

It is not a weakly prime, because it can be changed into another prime (350958701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175479360 + 175479361.

It is an arithmetic number, because the mean of its divisors is an integer number (175479361).

Almost surely, 2^350958721 is an apocalyptic number.

It is an amenable number.

350958721 is a deficient number, since it is larger than the sum of its proper divisors (1).

350958721 is an equidigital number, since it uses as much as digits as its factorization.

350958721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 350958721 is about 18733.8923077934. The cubic root of 350958721 is about 705.3727525984.

The spelling of 350958721 in words is "three hundred fifty million, nine hundred fifty-eight thousand, seven hundred twenty-one".