28886996 has 6 divisors (see below), whose sum is σ = 50552250. Its totient is φ = 14443496.

The previous prime is 28886971. The next prime is 28887007. The reversal of 28886996 is 69968882.

It can be written as a sum of positive squares in only one way, i.e., 26666896 + 2220100 = 5164^2 + 1490^2 .

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, 3610871 + ... + 3610878.

It is an arithmetic number, because the mean of its divisors is an integer number (8425375).

Almost surely, 2^28886996 is an apocalyptic number.

It is an amenable number.

28886996 is a deficient number, since it is larger than the sum of its proper divisors (21665254).

28886996 is a wasteful number, since it uses less digits than its factorization.

28886996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221753 (or 7221751 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 28886996 is about 5374.6624080029. The cubic root of 28886996 is about 306.8321009300.

The spelling of 28886996 in words is "twenty-eight million, eight hundred eighty-six thousand, nine hundred ninety-six".