9812977 has 4 divisors (see below), whose sum is σ = 9859696. Its totient is φ = 9766260.

The previous prime is 9812969. The next prime is 9812993. The reversal of 9812977 is 7792189.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7792189 = 59 ⋅132071.

It is a cyclic number.

It is not a de Polignac number, because 9812977 - 2³ = 9812969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9812917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23043 + ... + 23464.

It is an arithmetic number, because the mean of its divisors is an integer number (2464924).

Almost surely, 2^9812977 is an apocalyptic number.

It is an amenable number.

9812977 is a deficient number, since it is larger than the sum of its proper divisors (46719).

9812977 is a wasteful number, since it uses less digits than its factorization.

9812977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46718.

The product of its digits is 63504, while the sum is 43.

The square root of 9812977 is about 3132.5671580989. The cubic root of 9812977 is about 214.0919117809.

The spelling of 9812977 in words is "nine million, eight hundred twelve thousand, nine hundred seventy-seven".