345456765 has 32 divisors (see below), whose sum is σ = 646473600. Its totient is φ = 174545280.

The previous prime is 345456739. The next prime is 345456767. The reversal of 345456765 is 567654543.

345456765 is a `hidden beast` number, since 34 + 54 + 567 + 6 + 5 = 666.

345456765 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 345456765 - 2⁸ = 345456509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 345456765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345456767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64776 + ... + 69905.

It is an arithmetic number, because the mean of its divisors is an integer number (20202300).

Almost surely, 2^345456765 is an apocalyptic number.

It is an amenable number.

345456765 is a deficient number, since it is larger than the sum of its proper divisors (301016835).

345456765 is a wasteful number, since it uses less digits than its factorization.

345456765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134714 (or 134708 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The square root of 345456765 is about 18586.4672544300. The cubic root of 345456765 is about 701.6672943112.

The spelling of 345456765 in words is "three hundred forty-five million, four hundred fifty-six thousand, seven hundred sixty-five".