676420765 has 8 divisors (see below), whose sum is σ = 825011928. Its totient is φ = 532265280.

The previous prime is 676420753. The next prime is 676420783. The reversal of 676420765 is 567024676.

It can be written as a sum of positive squares in 4 ways, for example, as 15570916 + 660849849 = 3946^2 + 25707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 676420765 - 2⁵ = 676420733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108582 + ... + 1109191.

It is an arithmetic number, because the mean of its divisors is an integer number (103126491).

Almost surely, 2^676420765 is an apocalyptic number.

It is an amenable number.

676420765 is a deficient number, since it is larger than the sum of its proper divisors (148591163).

676420765 is a wasteful number, since it uses less digits than its factorization.

676420765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217839.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 676420765 is about 26008.0903758811. The cubic root of 676420765 is about 877.8203482383.

The spelling of 676420765 in words is "six hundred seventy-six million, four hundred twenty thousand, seven hundred sixty-five".