28901876 has 6 divisors (see below), whose sum is σ = 50578290. Its totient is φ = 14450936.

The previous prime is 28901837. The next prime is 28901881. The reversal of 28901876 is 67810982.

It can be written as a sum of positive squares in only one way, i.e., 26770276 + 2131600 = 5174^2 + 1460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612731 + ... + 3612738.

It is an arithmetic number, because the mean of its divisors is an integer number (8429715).

Almost surely, 2^28901876 is an apocalyptic number.

It is an amenable number.

28901876 is a deficient number, since it is larger than the sum of its proper divisors (21676414).

28901876 is a wasteful number, since it uses less digits than its factorization.

28901876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225473 (or 7225471 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 28901876 is about 5376.0465027751. The cubic root of 28901876 is about 306.8847760500.

The spelling of 28901876 in words is "twenty-eight million, nine hundred one thousand, eight hundred seventy-six".