9461087989 has 2 divisors, whose sum is σ = 9461087990. Its totient is φ = 9461087988.

The previous prime is 9461087971. The next prime is 9461088017. The reversal of 9461087989 is 9897801649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6527024100 + 2934063889 = 80790^2 + 54167^2 .

It is a cyclic number.

It is not a de Polignac number, because 9461087989 - 2¹⁷ = 9460956917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9461087939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4730543994 + 4730543995.

It is an arithmetic number, because the mean of its divisors is an integer number (4730543995).

Almost surely, 2^9461087989 is an apocalyptic number.

It is an amenable number.

9461087989 is a deficient number, since it is larger than the sum of its proper divisors (1).

9461087989 is an equidigital number, since it uses as much as digits as its factorization.

9461087989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The square root of 9461087989 is about 97268.1242185743. The cubic root of 9461087989 is about 2115.0161786585.

The spelling of 9461087989 in words is "nine billion, four hundred sixty-one million, eighty-seven thousand, nine hundred eighty-nine".