28851461 has 2 divisors, whose sum is σ = 28851462. Its totient is φ = 28851460.

The previous prime is 28851457. The next prime is 28851463. The reversal of 28851461 is 16415882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 12602500 = 4031^2 + 3550^2 .

It is a cyclic number.

It is not a de Polignac number, because 28851461 - 2² = 28851457 is a prime.

Together with 28851463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28851463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14425730 + 14425731.

It is an arithmetic number, because the mean of its divisors is an integer number (14425731).

Almost surely, 2^28851461 is an apocalyptic number.

It is an amenable number.

28851461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28851461 is an equidigital number, since it uses as much as digits as its factorization.

28851461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 35.

The square root of 28851461 is about 5371.3556017080. The cubic root of 28851461 is about 306.7062339988.

The spelling of 28851461 in words is "twenty-eight million, eight hundred fifty-one thousand, four hundred sixty-one".