28166374 has 4 divisors (see below), whose sum is σ = 42249564. Its totient is φ = 14083186.

The previous prime is 28166371. The next prime is 28166377. The reversal of 28166374 is 47366182.

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

It is an interprime number because it is at equal distance from previous prime (28166371) and next prime (28166377).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28166371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7041592 + ... + 7041595.

It is an arithmetic number, because the mean of its divisors is an integer number (10562391).

Almost surely, 2^28166374 is an apocalyptic number.

28166374 is a deficient number, since it is larger than the sum of its proper divisors (14083190).

28166374 is a wasteful number, since it uses less digits than its factorization.

28166374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14083189.

The product of its digits is 48384, while the sum is 37.

The square root of 28166374 is about 5307.2002034971. The cubic root of 28166374 is about 304.2591496926.

The spelling of 28166374 in words is "twenty-eight million, one hundred sixty-six thousand, three hundred seventy-four".