28634862 has 64 divisors (see below), whose sum is σ = 64235520. Its totient is φ = 8468064.

The previous prime is 28634857. The next prime is 28634863. The reversal of 28634862 is 26843682.

It is a self number, because there is not a number n which added to its sum of digits gives 28634862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28634863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175593 + ... + 175755.

It is an arithmetic number, because the mean of its divisors is an integer number (1003680).

Almost surely, 2^28634862 is an apocalyptic number.

28634862 is an abundant number, since it is smaller than the sum of its proper divisors (35600658).

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

28634862 is a wasteful number, since it uses less digits than its factorization.

28634862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its digits is 110592, while the sum is 39.

The square root of 28634862 is about 5351.1552023839. The cubic root of 28634862 is about 305.9367847543.

The spelling of 28634862 in words is "twenty-eight million, six hundred thirty-four thousand, eight hundred sixty-two".