7825736 has 8 divisors (see below), whose sum is σ = 14673270. Its totient is φ = 3912864.

The previous prime is 7825723. The next prime is 7825747. The reversal of 7825736 is 6375287.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7344100 + 481636 = 2710^2 + 694^2 .

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

It is a super-2 number, since 2×7825736² = 122484287883392, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7² + 8 + 2¹¹ + 5⁹ + 7⁸ + 3¹⁰ + 6⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 7825736.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489101 + ... + 489116.

Almost surely, 2^7825736 is an apocalyptic number.

It is an amenable number.

7825736 is a deficient number, since it is larger than the sum of its proper divisors (6847534).

7825736 is a wasteful number, since it uses less digits than its factorization.

7825736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978223 (or 978219 counting only the distinct ones).

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

The square root of 7825736 is about 2797.4516975276. The cubic root of 7825736 is about 198.5371260875.

The spelling of 7825736 in words is "seven million, eight hundred twenty-five thousand, seven hundred thirty-six".