7904212 has 6 divisors (see below), whose sum is σ = 13832378. Its totient is φ = 3952104.

The previous prime is 7904207. The next prime is 7904263. The reversal of 7904212 is 2124097.

7904212 is digitally balanced in base 5, 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 only one way, i.e., 4384836 + 3519376 = 2094^2 + 1876^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 988023 + ... + 988030.

Almost surely, 2^7904212 is an apocalyptic number.

It is an amenable number.

7904212 is a deficient number, since it is larger than the sum of its proper divisors (5928166).

7904212 is a wasteful number, since it uses less digits than its factorization.

7904212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976057 (or 1976055 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 7904212 is about 2811.4430458396. The cubic root of 7904212 is about 199.1985594214.

The spelling of 7904212 in words is "seven million, nine hundred four thousand, two hundred twelve".