7890229 has 4 divisors (see below), whose sum is σ = 7985376. Its totient is φ = 7795084.

The previous prime is 7890217. The next prime is 7890251. The reversal of 7890229 is 9220987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7890229 - 2¹³ = 7882037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7890209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47449 + ... + 47614.

It is an arithmetic number, because the mean of its divisors is an integer number (1996344).

Almost surely, 2^7890229 is an apocalyptic number.

It is an amenable number.

7890229 is a deficient number, since it is larger than the sum of its proper divisors (95147).

7890229 is an equidigital number, since it uses as much as digits as its factorization.

7890229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95146.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 7890229 is about 2808.9551438213. The cubic root of 7890229 is about 199.0810255640.

The spelling of 7890229 in words is "seven million, eight hundred ninety thousand, two hundred twenty-nine".