42786663 has 8 divisors (see below), whose sum is σ = 57182976. Its totient is φ = 28457400.

The previous prime is 42786649. The next prime is 42786673. The reversal of 42786663 is 36668724.

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

It is not a de Polignac number, because 42786663 - 2⁵ = 42786631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42786643) 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, 15253 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (7147872).

Almost surely, 2^42786663 is an apocalyptic number.

42786663 is a deficient number, since it is larger than the sum of its proper divisors (14396313).

42786663 is a wasteful number, since it uses less digits than its factorization.

42786663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33525.

The product of its digits is 290304, while the sum is 42.

The square root of 42786663 is about 6541.1515041314. The cubic root of 42786663 is about 349.7594619386.

The spelling of 42786663 in words is "forty-two million, seven hundred eighty-six thousand, six hundred sixty-three".