7899342 has 16 divisors (see below), whose sum is σ = 17235072. Its totient is φ = 2393720.

The previous prime is 7899319. The next prime is 7899343. The reversal of 7899342 is 2439987.

It is a d-powerful number, because it can be written as 7⁸ + 8³ + 9² + 9³ + 3⁹ + 4⁷ + 2²¹ .

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 7899294 and 7899303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899343) 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, 59778 + ... + 59909.

It is an arithmetic number, because the mean of its divisors is an integer number (1077192).

Almost surely, 2^7899342 is an apocalyptic number.

7899342 is an abundant number, since it is smaller than the sum of its proper divisors (9335730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7899342 is a wasteful number, since it uses less digits than its factorization.

7899342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119703.

The product of its digits is 108864, while the sum is 42.

The square root of 7899342 is about 2810.5768091266. The cubic root of 7899342 is about 199.1576404664.

The spelling of 7899342 in words is "seven million, eight hundred ninety-nine thousand, three hundred forty-two".