934657681 has 2 divisors, whose sum is σ = 934657682. Its totient is φ = 934657680.

The previous prime is 934657663. The next prime is 934657687. The reversal of 934657681 is 186756439.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557715456 + 376942225 = 23616^2 + 19415^2 .

It is a cyclic number.

It is not a de Polignac number, because 934657681 - 2⁵ = 934657649 is a prime.

It is a super-2 number, since 2×934657681² = 1747169961304595522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (934657687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467328840 + 467328841.

It is an arithmetic number, because the mean of its divisors is an integer number (467328841).

Almost surely, 2^934657681 is an apocalyptic number.

It is an amenable number.

934657681 is a deficient number, since it is larger than the sum of its proper divisors (1).

934657681 is an equidigital number, since it uses as much as digits as its factorization.

934657681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 934657681 is about 30572.1716762156. The cubic root of 934657681 is about 977.7268154535.

The spelling of 934657681 in words is "nine hundred thirty-four million, six hundred fifty-seven thousand, six hundred eighty-one".