28374107 has 4 divisors (see below), whose sum is σ = 28518336. Its totient is φ = 28229880.

The previous prime is 28374097. The next prime is 28374113. The reversal of 28374107 is 70147382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70147382 = 2 ⋅35073691.

It is a cyclic number.

It is not a de Polignac number, because 28374107 - 2⁶ = 28374043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28374167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71819 + ... + 72212.

It is an arithmetic number, because the mean of its divisors is an integer number (7129584).

Almost surely, 2^28374107 is an apocalyptic number.

28374107 is a deficient number, since it is larger than the sum of its proper divisors (144229).

28374107 is a wasteful number, since it uses less digits than its factorization.

28374107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144228.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28374107 is about 5326.7351163729. The cubic root of 28374107 is about 305.0053103080.

The spelling of 28374107 in words is "twenty-eight million, three hundred seventy-four thousand, one hundred seven".