28007476 has 24 divisors (see below), whose sum is σ = 56318976. Its totient is φ = 11938080.

The previous prime is 28007471. The next prime is 28007503. The reversal of 28007476 is 67470082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28007471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2730 + ... + 7966.

It is an arithmetic number, because the mean of its divisors is an integer number (2346624).

Almost surely, 2^28007476 is an apocalyptic number.

It is an amenable number.

28007476 is an abundant number, since it is smaller than the sum of its proper divisors (28311500).

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

28007476 is a wasteful number, since it uses less digits than its factorization.

28007476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439 (or 5437 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 28007476 is about 5292.2089905823. The cubic root of 28007476 is about 303.6859204245.

The spelling of 28007476 in words is "twenty-eight million, seven thousand, four hundred seventy-six".