63942367 has 4 divisors (see below), whose sum is σ = 66005056. Its totient is φ = 61879680.

The previous prime is 63942349. The next prime is 63942383. The reversal of 63942367 is 76324936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63942367 - 2¹⁹ = 63418079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63942337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031298 + ... + 1031359.

It is an arithmetic number, because the mean of its divisors is an integer number (16501264).

Almost surely, 2^63942367 is an apocalyptic number.

63942367 is a deficient number, since it is larger than the sum of its proper divisors (2062689).

63942367 is a wasteful number, since it uses less digits than its factorization.

63942367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062688.

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

The square root of 63942367 is about 7996.3971262063. The cubic root of 63942367 is about 399.8798951907.

The spelling of 63942367 in words is "sixty-three million, nine hundred forty-two thousand, three hundred sixty-seven".