63261623 has 2 divisors, whose sum is σ = 63261624. Its totient is φ = 63261622.

The previous prime is 63261619. The next prime is 63261631. The reversal of 63261623 is 32616236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63261623 - 2² = 63261619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63261613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31630811 + 31630812.

It is an arithmetic number, because the mean of its divisors is an integer number (31630812).

Almost surely, 2^63261623 is an apocalyptic number.

63261623 is a deficient number, since it is larger than the sum of its proper divisors (1).

63261623 is an equidigital number, since it uses as much as digits as its factorization.

63261623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 63261623 is about 7953.7175584754. The cubic root of 63261623 is about 398.4557605667.

Adding to 63261623 its reverse (32616236), we get a palindrome (95877859).

The spelling of 63261623 in words is "sixty-three million, two hundred sixty-one thousand, six hundred twenty-three".