28646958 has 16 divisors (see below), whose sum is σ = 57499776. Its totient is φ = 9514680.

The previous prime is 28646957. The next prime is 28646971. The reversal of 28646958 is 85964682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28646951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6738 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (3593736).

Almost surely, 2^28646958 is an apocalyptic number.

28646958 is an abundant number, since it is smaller than the sum of its proper divisors (28852818).

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

28646958 is a wasteful number, since it uses less digits than its factorization.

28646958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17159.

The product of its digits is 829440, while the sum is 48.

The square root of 28646958 is about 5352.2853062967. The cubic root of 28646958 is about 305.9798568483.

The spelling of 28646958 in words is "twenty-eight million, six hundred forty-six thousand, nine hundred fifty-eight".