7121344 has 14 divisors (see below), whose sum is σ = 14131544. Its totient is φ = 3560640.

The previous prime is 7121341. The next prime is 7121347. The reversal of 7121344 is 4431217.

It is an interprime number because it is at equal distance from previous prime (7121341) and next prime (7121347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55572 + ... + 55699.

It is an arithmetic number, because the mean of its divisors is an integer number (1009396).

Almost surely, 2^7121344 is an apocalyptic number.

It is an amenable number.

7121344 is a deficient number, since it is larger than the sum of its proper divisors (7010200).

7121344 is a wasteful number, since it uses less digits than its factorization.

7121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111283 (or 111273 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 7121344 is about 2668.5846435892. The cubic root of 7121344 is about 192.3921383711.

The spelling of 7121344 in words is "seven million, one hundred twenty-one thousand, three hundred forty-four".