7223849521 has 8 divisors (see below), whose sum is σ = 8259358464. Its totient is φ = 6189223200.

The previous prime is 7223849509. The next prime is 7223849579. The reversal of 7223849521 is 1259483227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7223849521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7223843521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203020 + ... + 235933.

It is an arithmetic number, because the mean of its divisors is an integer number (1032419808).

Almost surely, 2^7223849521 is an apocalyptic number.

It is an amenable number.

7223849521 is a deficient number, since it is larger than the sum of its proper divisors (1035508943).

7223849521 is a wasteful number, since it uses less digits than its factorization.

7223849521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441311.

The product of its digits is 241920, while the sum is 43.

The square root of 7223849521 is about 84993.2322070410. The cubic root of 7223849521 is about 1933.1084989797.

The spelling of 7223849521 in words is "seven billion, two hundred twenty-three million, eight hundred forty-nine thousand, five hundred twenty-one".