28407714 has 32 divisors (see below), whose sum is σ = 62778240. Its totient is φ = 8524032.

The previous prime is 28407707. The next prime is 28407719. The reversal of 28407714 is 41770482.

It is not an unprimeable number, because it can be changed into a prime (28407719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3709 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (1961820).

Almost surely, 2^28407714 is an apocalyptic number.

28407714 is an abundant number, since it is smaller than the sum of its proper divisors (34370526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28407714 is a wasteful number, since it uses less digits than its factorization.

28407714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12154.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 28407714 is about 5329.8887418032. Note that the first 3 decimals coincide. The cubic root of 28407714 is about 305.1256814291.

The spelling of 28407714 in words is "twenty-eight million, four hundred seven thousand, seven hundred fourteen".