23765478 has 32 divisors (see below), whose sum is σ = 52710912. Its totient is φ = 7082400.

The previous prime is 23765477. The next prime is 23765479. The reversal of 23765478 is 87456732.

It is an interprime number because it is at equal distance from previous prime (23765477) and next prime (23765479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23765477) 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, 1075 + ... + 6977.

It is an arithmetic number, because the mean of its divisors is an integer number (1647216).

Almost surely, 2^23765478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23765478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26355456).

23765478 is an abundant number, since it is smaller than the sum of its proper divisors (28945434).

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

23765478 is a wasteful number, since it uses less digits than its factorization.

23765478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980.

The product of its digits is 282240, while the sum is 42.

The square root of 23765478 is about 4874.9849230536. The cubic root of 23765478 is about 287.5072834954.

It can be divided in two parts, 237654 and 78, that added together give a palindrome (237732).

The spelling of 23765478 in words is "twenty-three million, seven hundred sixty-five thousand, four hundred seventy-eight".