63752690 has 8 divisors (see below), whose sum is σ = 114754860. Its totient is φ = 25501072.

The previous prime is 63752681. The next prime is 63752699. The reversal of 63752690 is 9625736.

It is an interprime number because it is at equal distance from previous prime (63752681) and next prime (63752699).

It can be written as a sum of positive squares in 2 ways, for example, as 62900761 + 851929 = 7931^2 + 923^2 .

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

It is a super-2 number, since 2×63752690² = 8128810964472200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63752699) 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, 3187625 + ... + 3187644.

Almost surely, 2^63752690 is an apocalyptic number.

63752690 is a deficient number, since it is larger than the sum of its proper divisors (51002170).

63752690 is a wasteful number, since it uses less digits than its factorization.

63752690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375276.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 63752690 is about 7984.5281638930. The cubic root of 63752690 is about 399.4841057522.

The spelling of 63752690 in words is "sixty-three million, seven hundred fifty-two thousand, six hundred ninety".