63672493 has 2 divisors, whose sum is σ = 63672494. Its totient is φ = 63672492.

The previous prime is 63672491. The next prime is 63672503. The reversal of 63672493 is 39427636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 10484644 = 7293^2 + 3238^2 .

It is a cyclic number.

It is not a de Polignac number, because 63672493 - 2¹ = 63672491 is a prime.

Together with 63672491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63672491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31836246 + 31836247.

It is an arithmetic number, because the mean of its divisors is an integer number (31836247).

Almost surely, 2^63672493 is an apocalyptic number.

It is an amenable number.

63672493 is a deficient number, since it is larger than the sum of its proper divisors (1).

63672493 is an equidigital number, since it uses as much as digits as its factorization.

63672493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 40.

The square root of 63672493 is about 7979.5045585550. The cubic root of 63672493 is about 399.3165265754.

The spelling of 63672493 in words is "sixty-three million, six hundred seventy-two thousand, four hundred ninety-three".