7948390 has 16 divisors (see below), whose sum is σ = 14342832. Its totient is φ = 3171424.

The previous prime is 7948373. The next prime is 7948393. The reversal of 7948390 is 938497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948393) 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, 4857 + ... + 6283.

It is an arithmetic number, because the mean of its divisors is an integer number (896427).

Almost surely, 2^7948390 is an apocalyptic number.

7948390 is a deficient number, since it is larger than the sum of its proper divisors (6394442).

7948390 is a wasteful number, since it uses less digits than its factorization.

7948390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7948390 is about 2819.2889174400. The cubic root of 7948390 is about 199.5689884793.

It can be divided in two parts, 7948 and 390, that added together give a palindrome (8338).

The spelling of 7948390 in words is "seven million, nine hundred forty-eight thousand, three hundred ninety".