63954899 has 2 divisors, whose sum is σ = 63954900. Its totient is φ = 63954898.

The previous prime is 63954853. The next prime is 63954911. The reversal of 63954899 is 99845936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63954899 - 2¹⁶ = 63889363 is a prime.

It is a super-2 number, since 2×63954899² = 8180458212200402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63954899.

It is not a weakly prime, because it can be changed into another prime (63954809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31977449 + 31977450.

It is an arithmetic number, because the mean of its divisors is an integer number (31977450).

Almost surely, 2^63954899 is an apocalyptic number.

63954899 is a deficient number, since it is larger than the sum of its proper divisors (1).

63954899 is an equidigital number, since it uses as much as digits as its factorization.

63954899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 53.

The square root of 63954899 is about 7997.1806907184. The cubic root of 63954899 is about 399.9060175033.

The spelling of 63954899 in words is "sixty-three million, nine hundred fifty-four thousand, eight hundred ninety-nine".