7121804 has 12 divisors (see below), whose sum is σ = 12553800. Its totient is φ = 3535008.

The previous prime is 7121801. The next prime is 7121809. The reversal of 7121804 is 4081217.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7121804.

It is not an unprimeable number, because it can be changed into a prime (7121801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5849 + ... + 6960.

It is an arithmetic number, because the mean of its divisors is an integer number (1046150).

Almost surely, 2^7121804 is an apocalyptic number.

It is an amenable number.

7121804 is a deficient number, since it is larger than the sum of its proper divisors (5431996).

7121804 is a wasteful number, since it uses less digits than its factorization.

7121804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952 (or 12950 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7121804 is about 2668.6708302074. The cubic root of 7121804 is about 192.3962807764.

The spelling of 7121804 in words is "seven million, one hundred twenty-one thousand, eight hundred four".