711025981 has 2 divisors, whose sum is σ = 711025982. Its totient is φ = 711025980.

The previous prime is 711025957. The next prime is 711026009. The reversal of 711025981 is 189520117.

It is a happy number.

711025981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 709423225 + 1602756 = 26635^2 + 1266^2 .

It is a cyclic number.

It is not a de Polignac number, because 711025981 - 2¹⁷ = 710894909 is a prime.

It is a super-2 number, since 2×711025981² = 1011115891314024722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (711025921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355512990 + 355512991.

It is an arithmetic number, because the mean of its divisors is an integer number (355512991).

Almost surely, 2^711025981 is an apocalyptic number.

It is an amenable number.

711025981 is a deficient number, since it is larger than the sum of its proper divisors (1).

711025981 is an equidigital number, since it uses as much as digits as its factorization.

711025981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 711025981 is about 26665.0704293088. The cubic root of 711025981 is about 892.5416472914.

The spelling of 711025981 in words is "seven hundred eleven million, twenty-five thousand, nine hundred eighty-one".