63490005 has 24 divisors (see below), whose sum is σ = 114835968. Its totient is φ = 32388576.

The previous prime is 63489989. The next prime is 63490027. The reversal of 63490005 is 50009436.

It is a happy number.

It is not a de Polignac number, because 63490005 - 2⁴ = 63489989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29637 + ... + 31706.

It is an arithmetic number, because the mean of its divisors is an integer number (4784832).

Almost surely, 2^63490005 is an apocalyptic number.

It is an amenable number.

63490005 is a deficient number, since it is larger than the sum of its proper divisors (51345963).

63490005 is a wasteful number, since it uses less digits than its factorization.

63490005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61377 (or 61374 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 63490005 is about 7968.0615584971. The cubic root of 63490005 is about 398.9346756456.

The spelling of 63490005 in words is "sixty-three million, four hundred ninety thousand, five".