42687623 has 16 divisors (see below), whose sum is σ = 50716800. Its totient is φ = 35491680.

The previous prime is 42687611. The next prime is 42687641. The reversal of 42687623 is 32678624.

42687623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42687623 - 2⁶ = 42687559 is a prime.

It is a super-3 number, since 3×42687623³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2540 + ... + 9582.

It is an arithmetic number, because the mean of its divisors is an integer number (3169800).

Almost surely, 2^42687623 is an apocalyptic number.

42687623 is a deficient number, since it is larger than the sum of its proper divisors (8029177).

42687623 is a wasteful number, since it uses less digits than its factorization.

42687623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102.

The product of its digits is 96768, while the sum is 38.

The square root of 42687623 is about 6533.5765856076. The cubic root of 42687623 is about 349.4893860413.

The spelling of 42687623 in words is "forty-two million, six hundred eighty-seven thousand, six hundred twenty-three".