7825090 has 32 divisors (see below), whose sum is σ = 17337600. Its totient is φ = 2476224.

The previous prime is 7825057. The next prime is 7825091. The reversal of 7825090 is 905287.

It is a super-2 number, since 2×7825090² = 122464067016200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825091) 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 in 15 ways as a sum of consecutive naturals, for example, 3390 + ... + 5209.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^7825090 is an apocalyptic number.

7825090 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7825090 is an abundant number, since it is smaller than the sum of its proper divisors (9512510).

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

7825090 is a wasteful number, since it uses less digits than its factorization.

7825090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8626.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7825090 is about 2797.3362329187. The cubic root of 7825090 is about 198.5316629799.

The spelling of 7825090 in words is "seven million, eight hundred twenty-five thousand, ninety".