23662061 has 4 divisors (see below), whose sum is σ = 23688252. Its totient is φ = 23635872.

The previous prime is 23662039. The next prime is 23662069. The reversal of 23662061 is 16026632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12033961 + 11628100 = 3469^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 23662061 - 2²² = 19467757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23662061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23662069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11690 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (5922063).

Almost surely, 2^23662061 is an apocalyptic number.

It is an amenable number.

23662061 is a deficient number, since it is larger than the sum of its proper divisors (26191).

23662061 is an equidigital number, since it uses as much as digits as its factorization.

23662061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26190.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23662061 is about 4864.3664541233. The cubic root of 23662061 is about 287.0896416557.

Adding to 23662061 its reverse (16026632), we get a palindrome (39688693).

The spelling of 23662061 in words is "twenty-three million, six hundred sixty-two thousand, sixty-one".