42861903 has 16 divisors (see below), whose sum is σ = 68153856. Its totient is φ = 23427360.

The previous prime is 42861893. The next prime is 42861911. The reversal of 42861903 is 30916824.

It is not a de Polignac number, because 42861903 - 2⁶ = 42861839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42861983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43888 + ... + 44853.

It is an arithmetic number, because the mean of its divisors is an integer number (4259616).

Almost surely, 2^42861903 is an apocalyptic number.

42861903 is a deficient number, since it is larger than the sum of its proper divisors (25291953).

42861903 is a wasteful number, since it uses less digits than its factorization.

42861903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88774.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 42861903 is about 6546.9002589012. The cubic root of 42861903 is about 349.9643582754.

The spelling of 42861903 in words is "forty-two million, eight hundred sixty-one thousand, nine hundred three".