28497892 has 12 divisors (see below), whose sum is σ = 49972860. Its totient is φ = 14219936.

The previous prime is 28497883. The next prime is 28497901. The reversal of 28497892 is 29879482.

It is an interprime number because it is at equal distance from previous prime (28497883) and next prime (28497901).

It can be written as a sum of positive squares in 2 ways, for example, as 18800896 + 9696996 = 4336^2 + 3114^2 .

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, 4963 + ... + 9034.

It is an arithmetic number, because the mean of its divisors is an integer number (4164405).

Almost surely, 2^28497892 is an apocalyptic number.

It is an amenable number.

28497892 is a deficient number, since it is larger than the sum of its proper divisors (21474968).

28497892 is a wasteful number, since it uses less digits than its factorization.

28497892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14510 (or 14508 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 28497892 is about 5338.3416900757. The cubic root of 28497892 is about 305.4482060265.

The spelling of 28497892 in words is "twenty-eight million, four hundred ninety-seven thousand, eight hundred ninety-two".