7826825 has 12 divisors (see below), whose sum is σ = 9744540. Its totient is φ = 6236160.

The previous prime is 7826809. The next prime is 7826837. The reversal of 7826825 is 5286287.

It can be written as a sum of positive squares in 6 ways, for example, as 2383936 + 5442889 = 1544^2 + 2333^2 .

It is not a de Polignac number, because 7826825 - 2⁴ = 7826809 is a prime.

It is a super-2 number, since 2×7826825² = 122518379161250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7961 + ... + 8889.

It is an arithmetic number, because the mean of its divisors is an integer number (812045).

Almost surely, 2^7826825 is an apocalyptic number.

It is an amenable number.

7826825 is a deficient number, since it is larger than the sum of its proper divisors (1917715).

7826825 is a wasteful number, since it uses less digits than its factorization.

7826825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1271 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 7826825 is about 2797.6463321871. The cubic root of 7826825 is about 198.5463348870.

The spelling of 7826825 in words is "seven million, eight hundred twenty-six thousand, eight hundred twenty-five".