7121608 has 16 divisors (see below), whose sum is σ = 14380380. Its totient is φ = 3286848.

The previous prime is 7121603. The next prime is 7121629. The reversal of 7121608 is 8061217.

It can be written as a sum of positive squares in 2 ways, for example, as 7064964 + 56644 = 2658^2 + 238^2 .

It is not an unprimeable number, because it can be changed into a prime (7121603) 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 3 ways as a sum of consecutive naturals, for example, 34135 + ... + 34342.

Almost surely, 2^7121608 is an apocalyptic number.

It is an amenable number.

7121608 is an abundant number, since it is smaller than the sum of its proper divisors (7258772).

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

7121608 is a wasteful number, since it uses less digits than its factorization.

7121608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68496 (or 68492 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 7121608 is about 2668.6341075539. The cubic root of 7121608 is about 192.3945157733.

The spelling of 7121608 in words is "seven million, one hundred twenty-one thousand, six hundred eight".