63490634 has 4 divisors (see below), whose sum is σ = 95235954. Its totient is φ = 31745316.

The previous prime is 63490627. The next prime is 63490639. The reversal of 63490634 is 43609436.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44262409 + 19228225 = 6653^2 + 4385^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63490594 and 63490603.

It is not an unprimeable number, because it can be changed into a prime (63490639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15872657 + ... + 15872660.

Almost surely, 2^63490634 is an apocalyptic number.

63490634 is a deficient number, since it is larger than the sum of its proper divisors (31745320).

63490634 is a wasteful number, since it uses less digits than its factorization.

63490634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31745319.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 63490634 is about 7968.1010284760. The cubic root of 63490634 is about 398.9359930660.

The spelling of 63490634 in words is "sixty-three million, four hundred ninety thousand, six hundred thirty-four".