23487855 has 16 divisors (see below), whose sum is σ = 38143104. Its totient is φ = 12339360.

The previous prime is 23487809. The next prime is 23487869. The reversal of 23487855 is 55878432.

It is not a de Polignac number, because 23487855 - 2¹³ = 23479663 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10681 + ... + 12690.

It is an arithmetic number, because the mean of its divisors is an integer number (2383944).

Almost surely, 2^23487855 is an apocalyptic number.

23487855 is a deficient number, since it is larger than the sum of its proper divisors (14655249).

23487855 is a wasteful number, since it uses less digits than its factorization.

23487855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23446.

The product of its digits is 268800, while the sum is 42.

The square root of 23487855 is about 4846.4270344244. The cubic root of 23487855 is about 286.3833636745.

It can be divided in two parts, 23487 and 855, that added together give a palindrome (24342).

The spelling of 23487855 in words is "twenty-three million, four hundred eighty-seven thousand, eight hundred fifty-five".