28020976 has 10 divisors (see below), whose sum is σ = 54290672. Its totient is φ = 14010480.

The previous prime is 28020973. The next prime is 28020997. The reversal of 28020976 is 67902082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28020973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875640 + ... + 875671.

Almost surely, 2^28020976 is an apocalyptic number.

It is an amenable number.

28020976 is a deficient number, since it is larger than the sum of its proper divisors (26269696).

28020976 is a wasteful number, since it uses less digits than its factorization.

28020976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751319 (or 1751313 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28020976 is about 5293.4842967558. The cubic root of 28020976 is about 303.7347062247.

The spelling of 28020976 in words is "twenty-eight million, twenty thousand, nine hundred seventy-six".