28926534 has 64 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 7378560.

The previous prime is 28926517. The next prime is 28926539. The reversal of 28926534 is 43562982.

It is a happy number.

It is a super-3 number, since 3×28926534³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28926492 and 28926501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28926539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16072 + ... + 17780.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^28926534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28926534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36771840).

28926534 is an abundant number, since it is smaller than the sum of its proper divisors (44617146).

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

28926534 is a wasteful number, since it uses less digits than its factorization.

28926534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765.

The product of its digits is 103680, while the sum is 39.

The square root of 28926534 is about 5378.3393347761. The cubic root of 28926534 is about 306.9720254477.

The spelling of 28926534 in words is "twenty-eight million, nine hundred twenty-six thousand, five hundred thirty-four".