345897786 has 32 divisors (see below), whose sum is σ = 748577088. Its totient is φ = 105920640.

The previous prime is 345897779. The next prime is 345897803. The reversal of 345897786 is 687798543.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5950 + ... + 26966.

It is an arithmetic number, because the mean of its divisors is an integer number (23393034).

Almost surely, 2^345897786 is an apocalyptic number.

345897786 is an abundant number, since it is smaller than the sum of its proper divisors (402679302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345897786 is a wasteful number, since it uses less digits than its factorization.

345897786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21246.

The product of its digits is 10160640, while the sum is 57.

The square root of 345897786 is about 18598.3275054506. The cubic root of 345897786 is about 701.9657575362.

The spelling of 345897786 in words is "three hundred forty-five million, eight hundred ninety-seven thousand, seven hundred eighty-six".