23766628 has 6 divisors (see below), whose sum is σ = 41591606. Its totient is φ = 11883312.

The previous prime is 23766619. The next prime is 23766641. The reversal of 23766628 is 82666732.

It can be written as a sum of positive squares in only one way, i.e., 23600164 + 166464 = 4858^2 + 408^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2970825 + ... + 2970832.

Almost surely, 2^23766628 is an apocalyptic number.

It is an amenable number.

23766628 is a deficient number, since it is larger than the sum of its proper divisors (17824978).

23766628 is a wasteful number, since it uses less digits than its factorization.

23766628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941661 (or 5941659 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 23766628 is about 4875.1028707095. The cubic root of 23766628 is about 287.5119208668.

The spelling of 23766628 in words is "twenty-three million, seven hundred sixty-six thousand, six hundred twenty-eight".