28786746 has 32 divisors (see below), whose sum is σ = 61205760. Its totient is φ = 8994816.

The previous prime is 28786741. The next prime is 28786757. The reversal of 28786746 is 64768782.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28786695 and 28786704.

It is not an unprimeable number, because it can be changed into a prime (28786741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37050 + ... + 37818.

It is an arithmetic number, because the mean of its divisors is an integer number (1912680).

Almost surely, 2^28786746 is an apocalyptic number.

28786746 is an abundant number, since it is smaller than the sum of its proper divisors (32419014).

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

28786746 is a wasteful number, since it uses less digits than its factorization.

28786746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158.

The product of its digits is 903168, while the sum is 48.

The square root of 28786746 is about 5365.3281353520. The cubic root of 28786746 is about 306.4767441441.

The spelling of 28786746 in words is "twenty-eight million, seven hundred eighty-six thousand, seven hundred forty-six".