28311674 has 4 divisors (see below), whose sum is σ = 42467514. Its totient is φ = 14155836.

The previous prime is 28311637. The next prime is 28311683. The reversal of 28311674 is 47611382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 5031049 = 4825^2 + 2243^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28311674.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7077917 + ... + 7077920.

Almost surely, 2^28311674 is an apocalyptic number.

28311674 is a deficient number, since it is larger than the sum of its proper divisors (14155840).

28311674 is a wasteful number, since it uses less digits than its factorization.

28311674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14155839.

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

The square root of 28311674 is about 5320.8715451512. The cubic root of 28311674 is about 304.7814397642.

The spelling of 28311674 in words is "twenty-eight million, three hundred eleven thousand, six hundred seventy-four".