42917623 has 4 divisors (see below), whose sum is σ = 49048720. Its totient is φ = 36786528.

The previous prime is 42917617. The next prime is 42917629. The reversal of 42917623 is 32671924.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42917617) and next prime (42917629).

It is a cyclic number.

It is not a de Polignac number, because 42917623 - 2⁵ = 42917591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42917629) 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, 3065538 + ... + 3065551.

It is an arithmetic number, because the mean of its divisors is an integer number (12262180).

Almost surely, 2^42917623 is an apocalyptic number.

42917623 is a deficient number, since it is larger than the sum of its proper divisors (6131097).

42917623 is an equidigital number, since it uses as much as digits as its factorization.

42917623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131096.

The product of its digits is 18144, while the sum is 34.

The square root of 42917623 is about 6551.1543257658. The cubic root of 42917623 is about 350.1159425405.

The spelling of 42917623 in words is "forty-two million, nine hundred seventeen thousand, six hundred twenty-three".