28611324 has 36 divisors (see below), whose sum is σ = 82655664. Its totient is φ = 8174592.

The previous prime is 28611311. The next prime is 28611353. The reversal of 28611324 is 42311682.

28611324 is a `hidden beast` number, since 28 + 611 + 3 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×28611324² = 1637215722065952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56517 + ... + 57020.

Almost surely, 2^28611324 is an apocalyptic number.

It is an amenable number.

28611324 is an abundant number, since it is smaller than the sum of its proper divisors (54044340).

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

28611324 is a wasteful number, since it uses less digits than its factorization.

28611324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113554 (or 113549 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 28611324 is about 5348.9554120407. The cubic root of 28611324 is about 305.8529345852.

The spelling of 28611324 in words is "twenty-eight million, six hundred eleven thousand, three hundred twenty-four".