28430704 has 20 divisors (see below), whose sum is σ = 55208520. Its totient is φ = 14183360.

The previous prime is 28430693. The next prime is 28430741. The reversal of 28430704 is 40703482.

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, 6399 + ... + 9889.

It is an arithmetic number, because the mean of its divisors is an integer number (2760426).

Almost surely, 2^28430704 is an apocalyptic number.

It is an amenable number.

28430704 is a deficient number, since it is larger than the sum of its proper divisors (26777816).

28430704 is a wasteful number, since it uses less digits than its factorization.

28430704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 28430704 is about 5332.0450110628. The cubic root of 28430704 is about 305.2079706731.

The spelling of 28430704 in words is "twenty-eight million, four hundred thirty thousand, seven hundred four".