28898963 has 4 divisors (see below), whose sum is σ = 30598920. Its totient is φ = 27199008.

The previous prime is 28898957. The next prime is 28898983. The reversal of 28898963 is 36989882.

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

It is a cyclic number.

It is not a de Polignac number, because 28898963 - 2⁶ = 28898899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28898953) 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, 849953 + ... + 849986.

It is an arithmetic number, because the mean of its divisors is an integer number (7649730).

Almost surely, 2^28898963 is an apocalyptic number.

28898963 is a deficient number, since it is larger than the sum of its proper divisors (1699957).

28898963 is a wasteful number, since it uses less digits than its factorization.

28898963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699956.

The product of its digits is 1492992, while the sum is 53.

The square root of 28898963 is about 5375.7755719524. The cubic root of 28898963 is about 306.8744654692.

The spelling of 28898963 in words is "twenty-eight million, eight hundred ninety-eight thousand, nine hundred sixty-three".