9890977 has 2 divisors, whose sum is σ = 9890978. Its totient is φ = 9890976.

The previous prime is 9890941. The next prime is 9890981. The reversal of 9890977 is 7790989.

9890977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9884736 + 6241 = 3144^2 + 79^2 .

It is an emirp because it is prime and its reverse (7790989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9890977 - 2¹¹ = 9888929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9890977.

It is not a weakly prime, because it can be changed into another prime (9890917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4945488 + 4945489.

It is an arithmetic number, because the mean of its divisors is an integer number (4945489).

Almost surely, 2^9890977 is an apocalyptic number.

It is an amenable number.

9890977 is a deficient number, since it is larger than the sum of its proper divisors (1).

9890977 is an equidigital number, since it uses as much as digits as its factorization.

9890977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 9890977 is about 3144.9923688302. The cubic root of 9890977 is about 214.6576632392.

The spelling of 9890977 in words is "nine million, eight hundred ninety thousand, nine hundred seventy-seven".