7220690389 has 16 divisors (see below), whose sum is σ = 7945047936. Its totient is φ = 6507864000.

The previous prime is 7220690383. The next prime is 7220690413. The reversal of 7220690389 is 9830960227.

It is not a de Polignac number, because 7220690389 - 2¹⁵ = 7220657621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220690383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724339 + ... + 734239.

It is an arithmetic number, because the mean of its divisors is an integer number (496565496).

Almost surely, 2^7220690389 is an apocalyptic number.

It is an amenable number.

7220690389 is a deficient number, since it is larger than the sum of its proper divisors (724357547).

7220690389 is a wasteful number, since it uses less digits than its factorization.

7220690389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 7220690389 is about 84974.6455656039. The cubic root of 7220690389 is about 1932.8266623889.

The spelling of 7220690389 in words is "seven billion, two hundred twenty million, six hundred ninety thousand, three hundred eighty-nine".