63780490 has 16 divisors (see below), whose sum is σ = 115943400. Its totient is φ = 25259200.

The previous prime is 63780463. The next prime is 63780491. The reversal of 63780490 is 9408736.

It can be written as a sum of positive squares in 4 ways, for example, as 58262689 + 5517801 = 7633^2 + 2349^2 .

It is not an unprimeable number, because it can be changed into a prime (63780491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30565 + ... + 32584.

Almost surely, 2^63780490 is an apocalyptic number.

63780490 is a deficient number, since it is larger than the sum of its proper divisors (52162910).

63780490 is a wasteful number, since it uses less digits than its factorization.

63780490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63257.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63780490 is about 7986.2688409545. The cubic root of 63780490 is about 399.5421636647.

The spelling of 63780490 in words is "sixty-three million, seven hundred eighty thousand, four hundred ninety".