8734428 has 36 divisors (see below), whose sum is σ = 22175608. Its totient is φ = 2898720.

The previous prime is 8734421. The next prime is 8734441. The reversal of 8734428 is 8244378.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8734392 and 8734401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8734421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11550 + ... + 12282.

Almost surely, 2^8734428 is an apocalyptic number.

It is an amenable number.

8734428 is an abundant number, since it is smaller than the sum of its proper divisors (13441180).

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

8734428 is a wasteful number, since it uses less digits than its factorization.

8734428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1069 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 8734428 is about 2955.4065710152. The cubic root of 8734428 is about 205.9419511558.

The spelling of 8734428 in words is "eight million, seven hundred thirty-four thousand, four hundred twenty-eight".