28863461 has 12 divisors (see below), whose sum is σ = 31881696. Its totient is φ = 26110920.

The previous prime is 28863437. The next prime is 28863463. The reversal of 28863461 is 16436882.

It is a happy number.

It is not a de Polignac number, because 28863461 - 2²² = 24669157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28863463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31370 + ... + 32276.

It is an arithmetic number, because the mean of its divisors is an integer number (2656808).

Almost surely, 2^28863461 is an apocalyptic number.

It is an amenable number.

28863461 is a deficient number, since it is larger than the sum of its proper divisors (3018235).

28863461 is a wasteful number, since it uses less digits than its factorization.

28863461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1181 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 28863461 is about 5372.4725220330. The cubic root of 28863461 is about 306.7487502127.

The spelling of 28863461 in words is "twenty-eight million, eight hundred sixty-three thousand, four hundred sixty-one".