28614464 has 14 divisors (see below), whose sum is σ = 56781954. Its totient is φ = 14307200.

The previous prime is 28614463. The next prime is 28614473. The reversal of 28614464 is 46441682.

It can be written as a sum of positive squares in only one way, i.e., 25080064 + 3534400 = 5008^2 + 1880^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28614463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223487 + ... + 223614.

Almost surely, 2^28614464 is an apocalyptic number.

It is an amenable number.

28614464 is a deficient number, since it is larger than the sum of its proper divisors (28167490).

28614464 is an equidigital number, since it uses as much as digits as its factorization.

28614464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447113 (or 447103 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 28614464 is about 5349.2489192409. The cubic root of 28614464 is about 305.8641229651.

The spelling of 28614464 in words is "twenty-eight million, six hundred fourteen thousand, four hundred sixty-four".