16289761 has 2 divisors, whose sum is σ = 16289762. Its totient is φ = 16289760.

The previous prime is 16289737. The next prime is 16289771. The reversal of 16289761 is 16798261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 5688225 = 3256^2 + 2385^2 .

It is a cyclic number.

It is not a de Polignac number, because 16289761 - 2¹³ = 16281569 is a prime.

It is not a weakly prime, because it can be changed into another prime (16289701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8144880 + 8144881.

It is an arithmetic number, because the mean of its divisors is an integer number (8144881).

Almost surely, 2^16289761 is an apocalyptic number.

It is an amenable number.

16289761 is a deficient number, since it is larger than the sum of its proper divisors (1).

16289761 is an equidigital number, since it uses as much as digits as its factorization.

16289761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 16289761 is about 4036.0576061300. The cubic root of 16289761 is about 253.4962684905.

The spelling of 16289761 in words is "sixteen million, two hundred eighty-nine thousand, seven hundred sixty-one".