7728536 has 16 divisors (see below), whose sum is σ = 14625600. Its totient is φ = 3828384.

The previous prime is 7728533. The next prime is 7728551. The reversal of 7728536 is 6358277.

It is a happy number.

It is a d-powerful number, because it can be written as 7 + 7⁸ + 2¹³ + 8 + 5⁹ + 3⁷ + 6³ .

It is a self number, because there is not a number n which added to its sum of digits gives 7728536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7728533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3560 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (914100).

Almost surely, 2^7728536 is an apocalyptic number.

It is an amenable number.

7728536 is a deficient number, since it is larger than the sum of its proper divisors (6897064).

7728536 is a wasteful number, since it uses less digits than its factorization.

7728536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978 (or 8974 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 7728536 is about 2780.0244603240. The cubic root of 7728536 is about 197.7117186931.

The spelling of 7728536 in words is "seven million, seven hundred twenty-eight thousand, five hundred thirty-six".