763841645 has 12 divisors (see below), whose sum is σ = 1066260924. Its totient is φ = 523776960.

The previous prime is 763841633. The next prime is 763841647. The reversal of 763841645 is 546148367.

It can be written as a sum of positive squares in 2 ways, for example, as 299913124 + 463928521 = 17318^2 + 21539^2 .

It is not a de Polignac number, because 763841645 - 2⁸ = 763841389 is a prime.

It is a super-3 number, since 3×763841645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 763841596 and 763841605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763841647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1558616 + ... + 1559105.

It is an arithmetic number, because the mean of its divisors is an integer number (88855077).

Almost surely, 2^763841645 is an apocalyptic number.

It is an amenable number.

763841645 is a deficient number, since it is larger than the sum of its proper divisors (302419279).

763841645 is a wasteful number, since it uses less digits than its factorization.

763841645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117740 (or 3117733 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 763841645 is about 27637.6852323055. The cubic root of 763841645 is about 914.1155796648.

The spelling of 763841645 in words is "seven hundred sixty-three million, eight hundred forty-one thousand, six hundred forty-five".