23489847 has 24 divisors (see below), whose sum is σ = 35642880. Its totient is φ = 14887440.

The previous prime is 23489839. The next prime is 23489861. The reversal of 23489847 is 74898432.

It is not a de Polignac number, because 23489847 - 2³ = 23489839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23489897) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15748 + ... + 17174.

It is an arithmetic number, because the mean of its divisors is an integer number (1485120).

Almost surely, 2^23489847 is an apocalyptic number.

23489847 is a deficient number, since it is larger than the sum of its proper divisors (12153033).

23489847 is a wasteful number, since it uses less digits than its factorization.

23489847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1520 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 23489847 is about 4846.6325422916. The cubic root of 23489847 is about 286.3914594831.

It can be divided in two parts, 23489 and 847, that added together give a square (24336 = 156²).

The spelling of 23489847 in words is "twenty-three million, four hundred eighty-nine thousand, eight hundred forty-seven".