28611374 has 32 divisors (see below), whose sum is σ = 50085216. Its totient is φ = 12113920.

The previous prime is 28611353. The next prime is 28611377. The reversal of 28611374 is 47311682.

It is a super-2 number, since 2×28611374² = 1637221444335752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28611374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28611377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41924 + ... + 42600.

It is an arithmetic number, because the mean of its divisors is an integer number (1565163).

Almost surely, 2^28611374 is an apocalyptic number.

28611374 is a deficient number, since it is larger than the sum of its proper divisors (21473842).

28611374 is a wasteful number, since it uses less digits than its factorization.

28611374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its digits is 8064, while the sum is 32.

The square root of 28611374 is about 5348.9600858485. The cubic root of 28611374 is about 305.8531127505.

The spelling of 28611374 in words is "twenty-eight million, six hundred eleven thousand, three hundred seventy-four".