28637196 has 24 divisors (see below), whose sum is σ = 76366080. Its totient is φ = 8182032.

The previous prime is 28637173. The next prime is 28637261. The reversal of 28637196 is 69173682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170376 + ... + 170543.

It is an arithmetic number, because the mean of its divisors is an integer number (3181920).

Almost surely, 2^28637196 is an apocalyptic number.

It is an amenable number.

28637196 is an abundant number, since it is smaller than the sum of its proper divisors (47728884).

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

28637196 is a wasteful number, since it uses less digits than its factorization.

28637196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340933 (or 340931 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 28637196 is about 5351.3732816913. The cubic root of 28637196 is about 305.9450967326.

The spelling of 28637196 in words is "twenty-eight million, six hundred thirty-seven thousand, one hundred ninety-six".