28616064 has 32 divisors (see below), whose sum is σ = 76012440. Its totient is φ = 9538560.

The previous prime is 28616057. The next prime is 28616101. The reversal of 28616064 is 46061682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36877 + ... + 37644.

Almost surely, 2^28616064 is an apocalyptic number.

28616064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28616064 is an abundant number, since it is smaller than the sum of its proper divisors (47396376).

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

28616064 is an equidigital number, since it uses as much as digits as its factorization.

28616064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74538 (or 74526 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28616064 is about 5349.3984708563. The cubic root of 28616064 is about 305.8698237356.

The spelling of 28616064 in words is "twenty-eight million, six hundred sixteen thousand, sixty-four".