63700090 has 8 divisors (see below), whose sum is σ = 114660180. Its totient is φ = 25480032.

The previous prime is 63700067. The next prime is 63700097. The reversal of 63700090 is 9000736.

It can be written as a sum of positive squares in 2 ways, for example, as 61512649 + 2187441 = 7843^2 + 1479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (63700097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3184995 + ... + 3185014.

Almost surely, 2^63700090 is an apocalyptic number.

63700090 is a deficient number, since it is larger than the sum of its proper divisors (50960090).

63700090 is a wasteful number, since it uses less digits than its factorization.

63700090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370016.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 63700090 is about 7981.2336139221. The cubic root of 63700090 is about 399.3742089745.

The spelling of 63700090 in words is "sixty-three million, seven hundred thousand, ninety".