28646951 has 2 divisors, whose sum is σ = 28646952. Its totient is φ = 28646950.

The previous prime is 28646929. The next prime is 28646957. The reversal of 28646951 is 15964682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28646951 - 2¹⁰ = 28645927 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28646899 and 28646908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28646957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14323475 + 14323476.

It is an arithmetic number, because the mean of its divisors is an integer number (14323476).

Almost surely, 2^28646951 is an apocalyptic number.

28646951 is a deficient number, since it is larger than the sum of its proper divisors (1).

28646951 is an equidigital number, since it uses as much as digits as its factorization.

28646951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 28646951 is about 5352.2846523704. The cubic root of 28646951 is about 305.9798319258.

The spelling of 28646951 in words is "twenty-eight million, six hundred forty-six thousand, nine hundred fifty-one".