23215734 has 28 divisors (see below), whose sum is σ = 52214796. Its totient is φ = 7738092.

The previous prime is 23215723. The next prime is 23215781. The reversal of 23215734 is 43751232.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23215698 and 23215707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 6504 + ... + 9419.

Almost surely, 2^23215734 is an apocalyptic number.

23215734 is an abundant number, since it is smaller than the sum of its proper divisors (28999062).

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

23215734 is an equidigital number, since it uses as much as digits as its factorization.

23215734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15943 (or 15928 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23215734 is about 4818.2708516645. The cubic root of 23215734 is about 285.2730900392.

Adding to 23215734 its reverse (43751232), we get a palindrome (66966966).

The spelling of 23215734 in words is "twenty-three million, two hundred fifteen thousand, seven hundred thirty-four".