7890122 has 8 divisors (see below), whose sum is σ = 12123972. Its totient is φ = 3848800.

The previous prime is 7890119. The next prime is 7890137. The reversal of 7890122 is 2210987.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7845601 + 44521 = 2801^2 + 211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48029 + ... + 48192.

Almost surely, 2^7890122 is an apocalyptic number.

7890122 is a deficient number, since it is larger than the sum of its proper divisors (4233850).

7890122 is a wasteful number, since it uses less digits than its factorization.

7890122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96264.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 7890122 is about 2808.9360975287. The cubic root of 7890122 is about 199.0801256422.

The spelling of 7890122 in words is "seven million, eight hundred ninety thousand, one hundred twenty-two".