7210896889 has 15 divisors (see below), whose sum is σ = 8417069423. Its totient is φ = 6177202248.

The previous prime is 7210896863. The next prime is 7210896899. The reversal of 7210896889 is 9886980127.

The square root of 7210896889 is 84917.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3202994025 + 4007902864 = 56595^2 + 63308^2 .

It is not a de Polignac number, because 7210896889 - 2⁷ = 7210896761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7210896859) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4160067 + ... + 4161799.

Almost surely, 2^7210896889 is an apocalyptic number.

7210896889 is the 84917-th square number.

7210896889 is the 42459-th centered octagonal number.

It is an amenable number.

7210896889 is a deficient number, since it is larger than the sum of its proper divisors (1206172534).

7210896889 is an frugal number, since it uses more digits than its factorization.

7210896889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 58.

The cubic root of 7210896889 is about 1931.9524291655.

The spelling of 7210896889 in words is "seven billion, two hundred ten million, eight hundred ninety-six thousand, eight hundred eighty-nine".