28678962 has 24 divisors (see below), whose sum is σ = 62111664. Its totient is φ = 8823984.

The previous prime is 28678939. The next prime is 28678963. The reversal of 28678962 is 26987682.

It is a happy number.

It is a super-2 number, since 2×28678962² = 1644965722794888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28678963) 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, 13128 + ... + 15155.

It is an arithmetic number, because the mean of its divisors is an integer number (2587986).

Almost surely, 2^28678962 is an apocalyptic number.

28678962 is an abundant number, since it is smaller than the sum of its proper divisors (33432702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28678962 is a wasteful number, since it uses less digits than its factorization.

28678962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28314 (or 28301 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 28678962 is about 5355.2742226706. The cubic root of 28678962 is about 306.0937599823.

The spelling of 28678962 in words is "twenty-eight million, six hundred seventy-eight thousand, nine hundred sixty-two".