28497076 has 6 divisors (see below), whose sum is σ = 49869890. Its totient is φ = 14248536.

The previous prime is 28497071. The next prime is 28497101. The reversal of 28497076 is 67079482.

It can be written as a sum of positive squares in only one way, i.e., 28344976 + 152100 = 5324^2 + 390^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28497071) 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 as a sum of consecutive naturals, namely, 3562131 + ... + 3562138.

Almost surely, 2^28497076 is an apocalyptic number.

It is an amenable number.

28497076 is a deficient number, since it is larger than the sum of its proper divisors (21372814).

28497076 is a wasteful number, since it uses less digits than its factorization.

28497076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124273 (or 7124271 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 28497076 is about 5338.2652612998. The cubic root of 28497076 is about 305.4452906283.

The spelling of 28497076 in words is "twenty-eight million, four hundred ninety-seven thousand, seventy-six".