63700990 has 8 divisors (see below), whose sum is σ = 114661800. Its totient is φ = 25480392.

The previous prime is 63700979. The next prime is 63700991. The reversal of 63700990 is 9900736.

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

It is a super-2 number, since 2×63700990² = 8115632253960200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63700991) 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, 3185040 + ... + 3185059.

It is an arithmetic number, because the mean of its divisors is an integer number (14332725).

Almost surely, 2^63700990 is an apocalyptic number.

63700990 is a deficient number, since it is larger than the sum of its proper divisors (50960810).

63700990 is a wasteful number, since it uses less digits than its factorization.

63700990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370106.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 63700990 is about 7981.2899959844. The cubic root of 63700990 is about 399.3760898463.

The spelling of 63700990 in words is "sixty-three million, seven hundred thousand, nine hundred ninety".