28954661 has 2 divisors, whose sum is σ = 28954662. Its totient is φ = 28954660.

The previous prime is 28954657. The next prime is 28954669. The reversal of 28954661 is 16645982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 801025 = 5306^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 28954661 - 2² = 28954657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28954669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14477330 + 14477331.

It is an arithmetic number, because the mean of its divisors is an integer number (14477331).

Almost surely, 2^28954661 is an apocalyptic number.

It is an amenable number.

28954661 is a deficient number, since it is larger than the sum of its proper divisors (1).

28954661 is an equidigital number, since it uses as much as digits as its factorization.

28954661 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 28954661 is about 5380.9535400336. The cubic root of 28954661 is about 307.0714889732.

The spelling of 28954661 in words is "twenty-eight million, nine hundred fifty-four thousand, six hundred sixty-one".