887969749 has 2 divisors, whose sum is σ = 887969750. Its totient is φ = 887969748.

The previous prime is 887969723. The next prime is 887969777. The reversal of 887969749 is 947969788.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 717275524 + 170694225 = 26782^2 + 13065^2 .

It is a cyclic number.

It is not a de Polignac number, because 887969749 - 2¹¹ = 887967701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (887969149) 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, 443984874 + 443984875.

It is an arithmetic number, because the mean of its divisors is an integer number (443984875).

Almost surely, 2^887969749 is an apocalyptic number.

It is an amenable number.

887969749 is a deficient number, since it is larger than the sum of its proper divisors (1).

887969749 is an equidigital number, since it uses as much as digits as its factorization.

887969749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 67.

The square root of 887969749 is about 29798.8212686341. The cubic root of 887969749 is about 961.1681919665.

The spelling of 887969749 in words is "eight hundred eighty-seven million, nine hundred sixty-nine thousand, seven hundred forty-nine".