7890369 has 8 divisors (see below), whose sum is σ = 10536000. Its totient is φ = 5252496.

The previous prime is 7890347. The next prime is 7890373. The reversal of 7890369 is 9630987.

It is a happy number.

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

It is not a de Polignac number, because 7890369 - 2¹³ = 7882177 is a prime.

It is a super-2 number, since 2×7890369² = 124515845912322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 7890369.

It is not an unprimeable number, because it can be changed into a prime (7890319) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1132 + ... + 4130.

It is an arithmetic number, because the mean of its divisors is an integer number (1317000).

Almost surely, 2^7890369 is an apocalyptic number.

It is an amenable number.

7890369 is a deficient number, since it is larger than the sum of its proper divisors (2645631).

7890369 is a wasteful number, since it uses less digits than its factorization.

7890369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 7890369 is about 2808.9800640090. The cubic root of 7890369 is about 199.0822030194.

The spelling of 7890369 in words is "seven million, eight hundred ninety thousand, three hundred sixty-nine".