350019997 has 4 divisors (see below), whose sum is σ = 350076096. Its totient is φ = 349963900.

The previous prime is 350019959. The next prime is 350020031. The reversal of 350019997 is 799910053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799910053 = 229 ⋅3493057.

It is a cyclic number.

It is not a de Polignac number, because 350019997 - 2⁷ = 350019869 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 (350089997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17323 + ... + 31624.

It is an arithmetic number, because the mean of its divisors is an integer number (87519024).

Almost surely, 2^350019997 is an apocalyptic number.

It is an amenable number.

350019997 is a deficient number, since it is larger than the sum of its proper divisors (56099).

350019997 is an equidigital number, since it uses as much as digits as its factorization.

350019997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56098.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 350019997 is about 18708.8213685416. The cubic root of 350019997 is about 704.7432943635.

The spelling of 350019997 in words is "three hundred fifty million, nineteen thousand, nine hundred ninety-seven".