7393906 has 16 divisors (see below), whose sum is σ = 12058200. Its totient is φ = 3379968.

The previous prime is 7393901. The next prime is 7393913. The reversal of 7393906 is 6093937.

It can be written as a sum of positive squares in 4 ways, for example, as 5716881 + 1677025 = 2391^2 + 1295^2 .

It is not an unprimeable number, because it can be changed into a prime (7393901) 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, 1530 + ... + 4138.

Almost surely, 2^7393906 is an apocalyptic number.

7393906 is a deficient number, since it is larger than the sum of its proper divisors (4664294).

7393906 is a wasteful number, since it uses less digits than its factorization.

7393906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 7393906 is about 2719.1737715711. The cubic root of 7393906 is about 194.8160087869.

The spelling of 7393906 in words is "seven million, three hundred ninety-three thousand, nine hundred six".