7905285 has 12 divisors (see below), whose sum is σ = 13702572. Its totient is φ = 4216128.

The previous prime is 7905277. The next prime is 7905343. The reversal of 7905285 is 5825097.

7905285 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5022081 + 2883204 = 2241^2 + 1698^2 .

It is not a de Polignac number, because 7905285 - 2³ = 7905277 is a prime.

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, 87792 + ... + 87881.

It is an arithmetic number, because the mean of its divisors is an integer number (1141881).

Almost surely, 2^7905285 is an apocalyptic number.

It is an amenable number.

7905285 is a deficient number, since it is larger than the sum of its proper divisors (5797287).

7905285 is a wasteful number, since it uses less digits than its factorization.

7905285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175684 (or 175681 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 7905285 is about 2811.6338666334. The cubic root of 7905285 is about 199.2075727754.

The spelling of 7905285 in words is "seven million, nine hundred five thousand, two hundred eighty-five".