28146726 has 12 divisors (see below), whose sum is σ = 60984612. Its totient is φ = 9382236.

The previous prime is 28146721. The next prime is 28146731. The reversal of 28146726 is 62764182.

It is an interprime number because it is at equal distance from previous prime (28146721) and next prime (28146731).

It is a super-3 number, since 3×28146726³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28146721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 781836 + ... + 781871.

It is an arithmetic number, because the mean of its divisors is an integer number (5082051).

Almost surely, 2^28146726 is an apocalyptic number.

28146726 is an abundant number, since it is smaller than the sum of its proper divisors (32837886).

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

28146726 is a wasteful number, since it uses less digits than its factorization.

28146726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563715 (or 1563712 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 28146726 is about 5305.3488103988. The cubic root of 28146726 is about 304.1883859473.

The spelling of 28146726 in words is "twenty-eight million, one hundred forty-six thousand, seven hundred twenty-six".