914891641 has 2 divisors, whose sum is σ = 914891642. Its totient is φ = 914891640.

The previous prime is 914891599. The next prime is 914891647. The reversal of 914891641 is 146198419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695851641 + 219040000 = 26379^2 + 14800^2 .

It is a cyclic number.

It is not a de Polignac number, because 914891641 - 2⁹ = 914891129 is a prime.

It is not a weakly prime, because it can be changed into another prime (914891647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457445820 + 457445821.

It is an arithmetic number, because the mean of its divisors is an integer number (457445821).

Almost surely, 2^914891641 is an apocalyptic number.

It is an amenable number.

914891641 is a deficient number, since it is larger than the sum of its proper divisors (1).

914891641 is an equidigital number, since it uses as much as digits as its factorization.

914891641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 43.

The square root of 914891641 is about 30247.1757524566. The cubic root of 914891641 is about 970.7853635312.

The spelling of 914891641 in words is "nine hundred fourteen million, eight hundred ninety-one thousand, six hundred forty-one".