345963899 has 4 divisors (see below), whose sum is σ = 346534464. Its totient is φ = 345393336.

The previous prime is 345963883. The next prime is 345963931. The reversal of 345963899 is 998369543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998369543 = 19001 ⋅52543.

It is a cyclic number.

It is not a de Polignac number, because 345963899 - 2⁴ = 345963883 is a prime.

It is a super-2 number, since 2×345963899² = 239382038822564402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345963869) 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, 284372 + ... + 285585.

It is an arithmetic number, because the mean of its divisors is an integer number (86633616).

Almost surely, 2^345963899 is an apocalyptic number.

345963899 is a deficient number, since it is larger than the sum of its proper divisors (570565).

345963899 is an equidigital number, since it uses as much as digits as its factorization.

345963899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570564.

The product of its digits is 6298560, while the sum is 56.

The square root of 345963899 is about 18600.1048115326. The cubic root of 345963899 is about 702.0104779783.

The spelling of 345963899 in words is "three hundred forty-five million, nine hundred sixty-three thousand, eight hundred ninety-nine".