345699379 has 4 divisors (see below), whose sum is σ = 346744120. Its totient is φ = 344654640.

The previous prime is 345699377. The next prime is 345699391. The reversal of 345699379 is 973996543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973996543 = 13 ⋅74922811.

It is a cyclic number.

It is not a de Polignac number, because 345699379 - 2¹ = 345699377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345699371) 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, 521874 + ... + 522535.

It is an arithmetic number, because the mean of its divisors is an integer number (86686030).

Almost surely, 2^345699379 is an apocalyptic number.

345699379 is a deficient number, since it is larger than the sum of its proper divisors (1044741).

345699379 is a wasteful number, since it uses less digits than its factorization.

345699379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044740.

The product of its digits is 5511240, while the sum is 55.

The square root of 345699379 is about 18592.9927392015. The cubic root of 345699379 is about 701.8315159929.

The spelling of 345699379 in words is "three hundred forty-five million, six hundred ninety-nine thousand, three hundred seventy-nine".