42946889 has 8 divisors (see below), whose sum is σ = 43431360. Its totient is φ = 42465456.

The previous prime is 42946877. The next prime is 42946903. The reversal of 42946889 is 98864924.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42946889 - 2⁸ = 42946633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42946489) 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, 37682 + ... + 38804.

It is an arithmetic number, because the mean of its divisors is an integer number (5428920).

Almost surely, 2^42946889 is an apocalyptic number.

It is an amenable number.

42946889 is a deficient number, since it is larger than the sum of its proper divisors (484471).

42946889 is a wasteful number, since it uses less digits than its factorization.

42946889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519.

The product of its digits is 995328, while the sum is 50.

The square root of 42946889 is about 6553.3875972660. The cubic root of 42946889 is about 350.1955070976.

The spelling of 42946889 in words is "forty-two million, nine hundred forty-six thousand, eight hundred eighty-nine".