989896763 has 2 divisors, whose sum is σ = 989896764. Its totient is φ = 989896762.

The previous prime is 989896711. The next prime is 989896769. The reversal of 989896763 is 367698989.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 989896763 - 2¹⁸ = 989634619 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 989896763.

It is not a weakly prime, because it can be changed into another prime (989896769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494948381 + 494948382.

It is an arithmetic number, because the mean of its divisors is an integer number (494948382).

Almost surely, 2^989896763 is an apocalyptic number.

989896763 is a deficient number, since it is larger than the sum of its proper divisors (1).

989896763 is an equidigital number, since it uses as much as digits as its factorization.

989896763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35271936, while the sum is 65.

The square root of 989896763 is about 31462.6248587113. The cubic root of 989896763 is about 996.6208485305.

The spelling of 989896763 in words is "nine hundred eighty-nine million, eight hundred ninety-six thousand, seven hundred sixty-three".