889464977 has 2 divisors, whose sum is σ = 889464978. Its totient is φ = 889464976.

The previous prime is 889464971. The next prime is 889465033. The reversal of 889464977 is 779464988.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448422976 + 441042001 = 21176^2 + 21001^2 .

It is a cyclic number.

It is not a de Polignac number, because 889464977 - 2⁶ = 889464913 is a prime.

It is a super-2 number, since 2×889464977² = 1582295890619221058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (889464971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444732488 + 444732489.

It is an arithmetic number, because the mean of its divisors is an integer number (444732489).

Almost surely, 2^889464977 is an apocalyptic number.

It is an amenable number.

889464977 is a deficient number, since it is larger than the sum of its proper divisors (1).

889464977 is an equidigital number, since it uses as much as digits as its factorization.

889464977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 62.

The square root of 889464977 is about 29823.8994264667. The cubic root of 889464977 is about 961.7073843886.

The spelling of 889464977 in words is "eight hundred eighty-nine million, four hundred sixty-four thousand, nine hundred seventy-seven".