28434726 has 20 divisors (see below), whose sum is σ = 63715212. Its totient is φ = 9478188.

The previous prime is 28434691. The next prime is 28434767. The reversal of 28434726 is 62743482.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 87600 + ... + 87923.

Almost surely, 2^28434726 is an apocalyptic number.

28434726 is an abundant number, since it is smaller than the sum of its proper divisors (35280486).

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

28434726 is a wasteful number, since it uses less digits than its factorization.

28434726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175537 (or 175528 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28434726 is about 5332.4221513305. The cubic root of 28434726 is about 305.2223622569. Note that the first 3 decimals are identical.

It can be divided in two parts, 2843 and 4726, that added together give a square (7569 = 87²).

The spelling of 28434726 in words is "twenty-eight million, four hundred thirty-four thousand, seven hundred twenty-six".