63772823 has 2 divisors, whose sum is σ = 63772824. Its totient is φ = 63772822.

The previous prime is 63772789. The next prime is 63772837. The reversal of 63772823 is 32827736.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63772823 - 2¹⁸ = 63510679 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63772853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31886411 + 31886412.

It is an arithmetic number, because the mean of its divisors is an integer number (31886412).

Almost surely, 2^63772823 is an apocalyptic number.

63772823 is a deficient number, since it is larger than the sum of its proper divisors (1).

63772823 is an equidigital number, since it uses as much as digits as its factorization.

63772823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 63772823 is about 7985.7888151391. The cubic root of 63772823 is about 399.5261534787.

The spelling of 63772823 in words is "sixty-three million, seven hundred seventy-two thousand, eight hundred twenty-three".