345763889 has 4 divisors (see below), whose sum is σ = 348403440. Its totient is φ = 343124340.

The previous prime is 345763883. The next prime is 345763907. The reversal of 345763889 is 988367543.

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.

It is a cyclic number.

It is not a de Polignac number, because 345763889 - 2²⁰ = 344715313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345763889.

It is not an unprimeable number, because it can be changed into a prime (345763883) 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, 1319579 + ... + 1319840.

It is an arithmetic number, because the mean of its divisors is an integer number (87100860).

Almost surely, 2^345763889 is an apocalyptic number.

It is an amenable number.

345763889 is a deficient number, since it is larger than the sum of its proper divisors (2639551).

345763889 is a wasteful number, since it uses less digits than its factorization.

345763889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639550.

The product of its digits is 4354560, while the sum is 53.

The square root of 345763889 is about 18594.7274516192. The cubic root of 345763889 is about 701.8751688870.

The spelling of 345763889 in words is "three hundred forty-five million, seven hundred sixty-three thousand, eight hundred eighty-nine".