63423769 has 2 divisors, whose sum is σ = 63423770. Its totient is φ = 63423768.

The previous prime is 63423757. The next prime is 63423791. The reversal of 63423769 is 96732436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63409369 + 14400 = 7963^2 + 120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63423769 is a prime.

It is a super-2 number, since 2×63423769² = 8045148948330722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63423749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31711884 + 31711885.

It is an arithmetic number, because the mean of its divisors is an integer number (31711885).

Almost surely, 2^63423769 is an apocalyptic number.

It is an amenable number.

63423769 is a deficient number, since it is larger than the sum of its proper divisors (1).

63423769 is an equidigital number, since it uses as much as digits as its factorization.

63423769 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 63423769 is about 7963.9041305129. The cubic root of 63423769 is about 398.7958977314.

The spelling of 63423769 in words is "sixty-three million, four hundred twenty-three thousand, seven hundred sixty-nine".