28014645 has 16 divisors (see below), whose sum is σ = 47183040. Its totient is φ = 14154624.

The previous prime is 28014641. The next prime is 28014653. The reversal of 28014645 is 54641082.

It is not a de Polignac number, because 28014645 - 2² = 28014641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28014641) 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, 48864 + ... + 49433.

It is an arithmetic number, because the mean of its divisors is an integer number (2948940).

Almost surely, 2^28014645 is an apocalyptic number.

It is an amenable number.

28014645 is a deficient number, since it is larger than the sum of its proper divisors (19168395).

28014645 is a wasteful number, since it uses less digits than its factorization.

28014645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98324.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 28014645 is about 5292.8862636562. The cubic root of 28014645 is about 303.7118294429.

The spelling of 28014645 in words is "twenty-eight million, fourteen thousand, six hundred forty-five".