63852661 has 2 divisors, whose sum is σ = 63852662. Its totient is φ = 63852660.

The previous prime is 63852641. The next prime is 63852707. The reversal of 63852661 is 16625836.

63852661 is nontrivially palindromic in base 9.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61324561 + 2528100 = 7831^2 + 1590^2 .

It is a cyclic number.

It is not a de Polignac number, because 63852661 - 2¹⁷ = 63721589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63852661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63852601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31926330 + 31926331.

It is an arithmetic number, because the mean of its divisors is an integer number (31926331).

Almost surely, 2^63852661 is an apocalyptic number.

It is an amenable number.

63852661 is a deficient number, since it is larger than the sum of its proper divisors (1).

63852661 is an equidigital number, since it uses as much as digits as its factorization.

63852661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 63852661 is about 7990.7860063951. The cubic root of 63852661 is about 399.6928078929.

The spelling of 63852661 in words is "sixty-three million, eight hundred fifty-two thousand, six hundred sixty-one".