63416989 has 2 divisors, whose sum is σ = 63416990. Its totient is φ = 63416988.

The previous prime is 63416971. The next prime is 63417007. The reversal of 63416989 is 98961436.

It is a balanced prime because it is at equal distance from previous prime (63416971) and next prime (63417007).

It can be written as a sum of positive squares in only one way, i.e., 54908100 + 8508889 = 7410^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 63416989 - 2²³ = 55028381 is a prime.

It is a super-2 number, since 2×63416989² = 8043428987652242, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63416929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31708494 + 31708495.

It is an arithmetic number, because the mean of its divisors is an integer number (31708495).

Almost surely, 2^63416989 is an apocalyptic number.

It is an amenable number.

63416989 is a deficient number, since it is larger than the sum of its proper divisors (1).

63416989 is an equidigital number, since it uses as much as digits as its factorization.

63416989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 63416989 is about 7963.4784485173. The cubic root of 63416989 is about 398.7816867997.

The spelling of 63416989 in words is "sixty-three million, four hundred sixteen thousand, nine hundred eighty-nine".