28736412 has 24 divisors (see below), whose sum is σ = 67200000. Its totient is φ = 9557616.

The previous prime is 28736401. The next prime is 28736413. The reversal of 28736412 is 21463782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28736413) 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, 3589 + ... + 8387.

It is an arithmetic number, because the mean of its divisors is an integer number (2800000).

Almost surely, 2^28736412 is an apocalyptic number.

It is an amenable number.

28736412 is an abundant number, since it is smaller than the sum of its proper divisors (38463588).

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

28736412 is a wasteful number, since it uses less digits than its factorization.

28736412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305 (or 5303 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 28736412 is about 5360.6354100983. The cubic root of 28736412 is about 306.2980137409.

The spelling of 28736412 in words is "twenty-eight million, seven hundred thirty-six thousand, four hundred twelve".