28703000 has 32 divisors (see below), whose sum is σ = 67167360. Its totient is φ = 11480800.

The previous prime is 28702967. The next prime is 28703033. The reversal of 28703000 is 30782.

It is an interprime number because it is at equal distance from previous prime (28702967) and next prime (28703033).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13352 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (2098980).

Almost surely, 2^28703000 is an apocalyptic number.

28703000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28703000 is an abundant number, since it is smaller than the sum of its proper divisors (38464360).

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

28703000 is a wasteful number, since it uses less digits than its factorization.

28703000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724 (or 28710 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 28703000 is about 5357.5180820973. The cubic root of 28703000 is about 306.1792561848.

Adding to 28703000 its reverse (30782), we get a palindrome (28733782).

The spelling of 28703000 in words is "twenty-eight million, seven hundred three thousand".