345205677 has 16 divisors (see below), whose sum is σ = 486176768. Its totient is φ = 217531440.

The previous prime is 345205673. The next prime is 345205681. The reversal of 345205677 is 776502543.

It is an interprime number because it is at equal distance from previous prime (345205673) and next prime (345205681).

It is not a de Polignac number, because 345205677 - 2² = 345205673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345205673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39163 + ... + 47160.

It is an arithmetic number, because the mean of its divisors is an integer number (30386048).

Almost surely, 2^345205677 is an apocalyptic number.

It is an amenable number.

345205677 is a deficient number, since it is larger than the sum of its proper divisors (140971091).

345205677 is a wasteful number, since it uses less digits than its factorization.

345205677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86400.

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 345205677 is about 18579.7114347882. The cubic root of 345205677 is about 701.4972557256.

The spelling of 345205677 in words is "three hundred forty-five million, two hundred five thousand, six hundred seventy-seven".