63962491 has 2 divisors, whose sum is σ = 63962492. Its totient is φ = 63962490.

The previous prime is 63962473. The next prime is 63962533. The reversal of 63962491 is 19426936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63962491 - 2⁷ = 63962363 is a prime.

It is not a weakly prime, because it can be changed into another prime (63962411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31981245 + 31981246.

It is an arithmetic number, because the mean of its divisors is an integer number (31981246).

Almost surely, 2^63962491 is an apocalyptic number.

63962491 is a deficient number, since it is larger than the sum of its proper divisors (1).

63962491 is an equidigital number, since it uses as much as digits as its factorization.

63962491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 63962491 is about 7997.6553439117. The cubic root of 63962491 is about 399.9218409789.

The spelling of 63962491 in words is "sixty-three million, nine hundred sixty-two thousand, four hundred ninety-one".