7223020985 has 4 divisors (see below), whose sum is σ = 8667625188. Its totient is φ = 5778416784.

The previous prime is 7223020969. The next prime is 7223020991. The reversal of 7223020985 is 5890203227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3724416784 + 3498604201 = 61028^2 + 59149^2 .

It is a cyclic number.

It is not a de Polignac number, because 7223020985 - 2⁴ = 7223020969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722302094 + ... + 722302103.

It is an arithmetic number, because the mean of its divisors is an integer number (2166906297).

Almost surely, 2^7223020985 is an apocalyptic number.

It is an amenable number.

7223020985 is a deficient number, since it is larger than the sum of its proper divisors (1444604203).

7223020985 is a wasteful number, since it uses less digits than its factorization.

7223020985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444604202.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 7223020985 is about 84988.3579380141. The cubic root of 7223020985 is about 1933.0345904994.

The spelling of 7223020985 in words is "seven billion, two hundred twenty-three million, twenty thousand, nine hundred eighty-five".