763498989 has 36 divisors (see below), whose sum is σ = 1226953728. Its totient is φ = 457097520.

The previous prime is 763498949. The next prime is 763498991. The reversal of 763498989 is 989894367.

763498989 is a `hidden beast` number, since 7 + 63 + 498 + 9 + 89 = 666.

It is not a de Polignac number, because 763498989 - 2⁷ = 763498861 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763498949) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86164 + ... + 94610.

It is an arithmetic number, because the mean of its divisors is an integer number (34082048).

Almost surely, 2^763498989 is an apocalyptic number.

It is an amenable number.

763498989 is a deficient number, since it is larger than the sum of its proper divisors (463454739).

763498989 is a wasteful number, since it uses less digits than its factorization.

763498989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558 (or 8544 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 763498989 is about 27631.4854649546. The cubic root of 763498989 is about 913.9788698117.

The spelling of 763498989 in words is "seven hundred sixty-three million, four hundred ninety-eight thousand, nine hundred eighty-nine".