28692534 has 16 divisors (see below), whose sum is σ = 61799472. Its totient is φ = 8828448.

The previous prime is 28692493. The next prime is 28692541. The reversal of 28692534 is 43529682.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 28692492 and 28692501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183849 + ... + 184004.

It is an arithmetic number, because the mean of its divisors is an integer number (3862467).

Almost surely, 2^28692534 is an apocalyptic number.

28692534 is an abundant number, since it is smaller than the sum of its proper divisors (33106938).

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

28692534 is a wasteful number, since it uses less digits than its factorization.

28692534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367871.

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

The square root of 28692534 is about 5356.5412347895. The cubic root of 28692534 is about 306.1420375240.

The spelling of 28692534 in words is "twenty-eight million, six hundred ninety-two thousand, five hundred thirty-four".