63490999 has 24 divisors (see below), whose sum is σ = 75910016. Its totient is φ = 52747200.

The previous prime is 63490993. The next prime is 63491003. The reversal of 63490999 is 99909436.

It is not a de Polignac number, because 63490999 - 2⁷ = 63490871 is a prime.

It is a super-2 number, since 2×63490999² = 8062213908036002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63490993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284602 + ... + 284824.

Almost surely, 2^63490999 is an apocalyptic number.

63490999 is a deficient number, since it is larger than the sum of its proper divisors (12419017).

63490999 is a wasteful number, since it uses less digits than its factorization.

63490999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 63490999 is about 7968.1239322691. The cubic root of 63490999 is about 398.9367575428.

The spelling of 63490999 in words is "sixty-three million, four hundred ninety thousand, nine hundred ninety-nine".