28711496 has 32 divisors (see below), whose sum is σ = 58942080. Its totient is φ = 13003200.

The previous prime is 28711493. The next prime is 28711517. The reversal of 28711496 is 69411782.

It is a super-3 number, since 3×28711496³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28711493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37550 + ... + 38306.

It is an arithmetic number, because the mean of its divisors is an integer number (1841940).

Almost surely, 2^28711496 is an apocalyptic number.

It is an amenable number.

28711496 is an abundant number, since it is smaller than the sum of its proper divisors (30230584).

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

28711496 is a wasteful number, since it uses less digits than its factorization.

28711496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1201 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 28711496 is about 5358.3109278951. The cubic root of 28711496 is about 306.2094625783.

The spelling of 28711496 in words is "twenty-eight million, seven hundred eleven thousand, four hundred ninety-six".