23147730 has 48 divisors (see below), whose sum is σ = 60450624. Its totient is φ = 6145440.

The previous prime is 23147723. The next prime is 23147737. The reversal of 23147730 is 3774132.

It is an interprime number because it is at equal distance from previous prime (23147723) and next prime (23147737).

It is a junction number, because it is equal to n+sod(n) for n = 23147694 and 23147703.

It is not an unprimeable number, because it can be changed into a prime (23147737) 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 23 ways as a sum of consecutive naturals, for example, 27577 + ... + 28403.

It is an arithmetic number, because the mean of its divisors is an integer number (1259388).

Almost surely, 2^23147730 is an apocalyptic number.

23147730 is an abundant number, since it is smaller than the sum of its proper divisors (37302894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23147730 is a wasteful number, since it uses less digits than its factorization.

23147730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 23147730 is about 4811.2087878204. The cubic root of 23147730 is about 284.9942750466.

It can be divided in two parts, 231 and 47730, that added together give a square (47961 = 219²).

The spelling of 23147730 in words is "twenty-three million, one hundred forty-seven thousand, seven hundred thirty".