63942427 has 2 divisors, whose sum is σ = 63942428. Its totient is φ = 63942426.

The previous prime is 63942383. The next prime is 63942449. The reversal of 63942427 is 72424936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63942427 - 2¹¹ = 63940379 is a prime.

It is not a weakly prime, because it can be changed into another prime (63940427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31971213 + 31971214.

It is an arithmetic number, because the mean of its divisors is an integer number (31971214).

Almost surely, 2^63942427 is an apocalyptic number.

63942427 is a deficient number, since it is larger than the sum of its proper divisors (1).

63942427 is an equidigital number, since it uses as much as digits as its factorization.

63942427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 63942427 is about 7996.4008778950. The cubic root of 63942427 is about 399.8800202658.

The spelling of 63942427 in words is "sixty-three million, nine hundred forty-two thousand, four hundred twenty-seven".