10388977 has 4 divisors (see below), whose sum is σ = 10404340. Its totient is φ = 10373616.

The previous prime is 10388957. The next prime is 10388993. The reversal of 10388977 is 77988301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77988301 = 109 ⋅715489.

It can be written as a sum of positive squares in 2 ways, for example, as 4800481 + 5588496 = 2191^2 + 2364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10388977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10388947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6618 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (2601085).

Almost surely, 2^10388977 is an apocalyptic number.

It is an amenable number.

10388977 is a deficient number, since it is larger than the sum of its proper divisors (15363).

10388977 is an equidigital number, since it uses as much as digits as its factorization.

10388977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15362.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 10388977 is about 3223.1936026246. The cubic root of 10388977 is about 218.2014312493.

The spelling of 10388977 in words is "ten million, three hundred eighty-eight thousand, nine hundred seventy-seven".