7021912 has 8 divisors (see below), whose sum is σ = 13166100. Its totient is φ = 3510952.

The previous prime is 7021879. The next prime is 7021913. The reversal of 7021912 is 2191207.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7021913) 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 as a sum of consecutive naturals, namely, 438862 + ... + 438877.

Almost surely, 2^7021912 is an apocalyptic number.

It is an amenable number.

7021912 is a deficient number, since it is larger than the sum of its proper divisors (6144188).

7021912 is a wasteful number, since it uses less digits than its factorization.

7021912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877745 (or 877741 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 7021912 is about 2649.8890542813. The cubic root of 7021912 is about 191.4925110747.

The spelling of 7021912 in words is "seven million, twenty-one thousand, nine hundred twelve".