63883789 has 2 divisors, whose sum is σ = 63883790. Its totient is φ = 63883788.

The previous prime is 63883783. The next prime is 63883817. The reversal of 63883789 is 98738836.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47155689 + 16728100 = 6867^2 + 4090^2 .

It is a cyclic number.

It is not a de Polignac number, because 63883789 - 2⁷ = 63883661 is a prime.

It is a super-2 number, since 2×63883789² = 8162276993993042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63883783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31941894 + 31941895.

It is an arithmetic number, because the mean of its divisors is an integer number (31941895).

Almost surely, 2^63883789 is an apocalyptic number.

It is an amenable number.

63883789 is a deficient number, since it is larger than the sum of its proper divisors (1).

63883789 is an equidigital number, since it uses as much as digits as its factorization.

63883789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 63883789 is about 7992.7335123849. The cubic root of 63883789 is about 399.7577470634.

The spelling of 63883789 in words is "sixty-three million, eight hundred eighty-three thousand, seven hundred eighty-nine".