763345985 has 8 divisors (see below), whose sum is σ = 969898536. Its totient is φ = 574754560.

The previous prime is 763345967. The next prime is 763345987. The reversal of 763345985 is 589543367.

It can be written as a sum of positive squares in 4 ways, for example, as 280093696 + 483252289 = 16736^2 + 21983^2 .

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

It is not a de Polignac number, because 763345985 - 2¹⁶ = 763280449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (763345987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4490186 + ... + 4490355.

It is an arithmetic number, because the mean of its divisors is an integer number (121237317).

Almost surely, 2^763345985 is an apocalyptic number.

It is an amenable number.

763345985 is a deficient number, since it is larger than the sum of its proper divisors (206552551).

763345985 is a wasteful number, since it uses less digits than its factorization.

763345985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980563.

The product of its digits is 2721600, while the sum is 50.

The square root of 763345985 is about 27628.7166730560. The cubic root of 763345985 is about 913.9178124223.

The spelling of 763345985 in words is "seven hundred sixty-three million, three hundred forty-five thousand, nine hundred eighty-five".