763641 has 8 divisors (see below), whose sum is σ = 1131360. Its totient is φ = 509076.

The previous prime is 763627. The next prime is 763649. The reversal of 763641 is 146367.

It is not a de Polignac number, because 763641 - 2⁷ = 763513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 28283 = 763641 / (7 + 6 + 3 + 6 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (763649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14115 + ... + 14168.

It is an arithmetic number, because the mean of its divisors is an integer number (141420).

2⁷⁶³⁶⁴¹ is an apocalyptic number.

It is an amenable number.

763641 is a deficient number, since it is larger than the sum of its proper divisors (367719).

763641 is a wasteful number, since it uses less digits than its factorization.

763641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28292 (or 28286 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 763641 is about 873.8655502994. The cubic root of 763641 is about 91.4035533064.

The spelling of 763641 in words is "seven hundred sixty-three thousand, six hundred forty-one".