765432345 has 16 divisors (see below), whose sum is σ = 1234043712. Its totient is φ = 405113280.

The previous prime is 765432329. The next prime is 765432359. The reversal of 765432345 is 543234567.

765432345 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 765432345 - 2⁴ = 765432329 is a prime.

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

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, 192802 + ... + 196731.

It is an arithmetic number, because the mean of its divisors is an integer number (77127732).

Almost surely, 2^765432345 is an apocalyptic number.

It is an amenable number.

765432345 is a deficient number, since it is larger than the sum of its proper divisors (468611367).

765432345 is a wasteful number, since it uses less digits than its factorization.

765432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389672.

The product of its digits is 302400, while the sum is 39.

The square root of 765432345 is about 27666.4480011439. The cubic root of 765432345 is about 914.7496881662.

The spelling of 765432345 in words is "seven hundred sixty-five million, four hundred thirty-two thousand, three hundred forty-five".