7890746 has 8 divisors (see below), whose sum is σ = 12059604. Its totient is φ = 3870880.

The previous prime is 7890739. The next prime is 7890749. The reversal of 7890746 is 6470987.

It can be written as a sum of positive squares in 2 ways, for example, as 7778521 + 112225 = 2789^2 + 335^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7890749) 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 3 ways as a sum of consecutive naturals, for example, 37115 + ... + 37326.

Almost surely, 2^7890746 is an apocalyptic number.

7890746 is a deficient number, since it is larger than the sum of its proper divisors (4168858).

7890746 is a wasteful number, since it uses less digits than its factorization.

7890746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74496.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 7890746 is about 2809.0471694153. The cubic root of 7890746 is about 199.0853736694.

The spelling of 7890746 in words is "seven million, eight hundred ninety thousand, seven hundred forty-six".