345881867 has 4 divisors (see below), whose sum is σ = 347130816. Its totient is φ = 344632920.

The previous prime is 345881831. The next prime is 345881933. The reversal of 345881867 is 768188543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768188543 = 3251 ⋅236293.

It is a cyclic number.

It is not a de Polignac number, because 345881867 - 2⁶ = 345881803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345881807) 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, 624059 + ... + 624612.

It is an arithmetic number, because the mean of its divisors is an integer number (86782704).

Almost surely, 2^345881867 is an apocalyptic number.

345881867 is a deficient number, since it is larger than the sum of its proper divisors (1248949).

345881867 is a wasteful number, since it uses less digits than its factorization.

345881867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248948.

The product of its digits is 1290240, while the sum is 50.

The square root of 345881867 is about 18597.8995319364. The cubic root of 345881867 is about 701.9549886860.

The spelling of 345881867 in words is "three hundred forty-five million, eight hundred eighty-one thousand, eight hundred sixty-seven".