28374285 has 8 divisors (see below), whose sum is σ = 45398880. Its totient is φ = 15132944.

The previous prime is 28374271. The next prime is 28374287. The reversal of 28374285 is 58247382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28374285 - 2¹² = 28370189 is a prime.

It is a super-2 number, since 2×28374285² = 1610200098522450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374287) 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 7 ways as a sum of consecutive naturals, for example, 945795 + ... + 945824.

It is an arithmetic number, because the mean of its divisors is an integer number (5674860).

Almost surely, 2^28374285 is an apocalyptic number.

It is an amenable number.

28374285 is a deficient number, since it is larger than the sum of its proper divisors (17024595).

28374285 is a wasteful number, since it uses less digits than its factorization.

28374285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891627.

The product of its digits is 107520, while the sum is 39.

The square root of 28374285 is about 5326.7518245175. The cubic root of 28374285 is about 305.0059481058.

The spelling of 28374285 in words is "twenty-eight million, three hundred seventy-four thousand, two hundred eighty-five".