42604623 has 10 divisors (see below), whose sum is σ = 63644064. Its totient is φ = 28403028.

The previous prime is 42604609. The next prime is 42604637. The reversal of 42604623 is 32640624.

It is an interprime number because it is at equal distance from previous prime (42604609) and next prime (42604637).

It is not a de Polignac number, because 42604623 - 2⁵ = 42604591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42604673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 262911 + ... + 263072.

Almost surely, 2^42604623 is an apocalyptic number.

42604623 is a deficient number, since it is larger than the sum of its proper divisors (21039441).

42604623 is an equidigital number, since it uses as much as digits as its factorization.

42604623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525995 (or 525986 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 42604623 is about 6527.2216907349. The cubic root of 42604623 is about 349.2627283068.

The spelling of 42604623 in words is "forty-two million, six hundred four thousand, six hundred twenty-three".