7136728 has 8 divisors (see below), whose sum is σ = 13381380. Its totient is φ = 3568360.

The previous prime is 7136711. The next prime is 7136729. The reversal of 7136728 is 8276317.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7136693 and 7136702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7136729) by changing a digit.

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 as a sum of consecutive naturals, namely, 446038 + ... + 446053.

Almost surely, 2^7136728 is an apocalyptic number.

It is an amenable number.

7136728 is a deficient number, since it is larger than the sum of its proper divisors (6244652).

7136728 is a wasteful number, since it uses less digits than its factorization.

7136728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892097 (or 892093 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 7136728 is about 2671.4655154054. The cubic root of 7136728 is about 192.5305781525.

The spelling of 7136728 in words is "seven million, one hundred thirty-six thousand, seven hundred twenty-eight".