42663887 has 8 divisors (see below), whose sum is σ = 49679136. Its totient is φ = 35878752.

The previous prime is 42663877. The next prime is 42663899. The reversal of 42663887 is 78836624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42663887 - 2⁶ = 42663823 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42663847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57128 + ... + 57869.

It is an arithmetic number, because the mean of its divisors is an integer number (6209892).

Almost surely, 2^42663887 is an apocalyptic number.

42663887 is a deficient number, since it is larger than the sum of its proper divisors (7015249).

42663887 is a wasteful number, since it uses less digits than its factorization.

42663887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115057.

The product of its digits is 387072, while the sum is 44.

The square root of 42663887 is about 6531.7598700503. The cubic root of 42663887 is about 349.4245974094.

The spelling of 42663887 in words is "forty-two million, six hundred sixty-three thousand, eight hundred eighty-seven".