63902849 has 2 divisors, whose sum is σ = 63902850. Its totient is φ = 63902848.

The previous prime is 63902831. The next prime is 63902851. The reversal of 63902849 is 94820936.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57988225 + 5914624 = 7615^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 63902849 - 2¹² = 63898753 is a prime.

It is a super-2 number, since 2×63902849² = 8167148220633602, which contains 22 as substring.

Together with 63902851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63902819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31951424 + 31951425.

It is an arithmetic number, because the mean of its divisors is an integer number (31951425).

Almost surely, 2^63902849 is an apocalyptic number.

It is an amenable number.

63902849 is a deficient number, since it is larger than the sum of its proper divisors (1).

63902849 is an equidigital number, since it uses as much as digits as its factorization.

63902849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 63902849 is about 7993.9257564728. The cubic root of 63902849 is about 399.7974995846.

The spelling of 63902849 in words is "sixty-three million, nine hundred two thousand, eight hundred forty-nine".