42986423 has 4 divisors (see below), whose sum is σ = 43429680. Its totient is φ = 42543168.

The previous prime is 42986413. The next prime is 42986431. The reversal of 42986423 is 32468924.

It is a happy number.

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 42986423 - 2⁴ = 42986407 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 (42986413) 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, 221483 + ... + 221676.

It is an arithmetic number, because the mean of its divisors is an integer number (10857420).

Almost surely, 2^42986423 is an apocalyptic number.

42986423 is a deficient number, since it is larger than the sum of its proper divisors (443257).

42986423 is an equidigital number, since it uses as much as digits as its factorization.

42986423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443256.

The product of its digits is 82944, while the sum is 38.

The square root of 42986423 is about 6556.4032060269. The cubic root of 42986423 is about 350.3029295716.

The spelling of 42986423 in words is "forty-two million, nine hundred eighty-six thousand, four hundred twenty-three".