10778623 has 4 divisors (see below), whose sum is σ = 10786608. Its totient is φ = 10770640.

The previous prime is 10778611. The next prime is 10778627. The reversal of 10778623 is 32687701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10778623 is a prime.

It is a super-2 number, since 2×10778623² = 232357427552258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10778627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1411 + ... + 4852.

It is an arithmetic number, because the mean of its divisors is an integer number (2696652).

Almost surely, 2^10778623 is an apocalyptic number.

10778623 is a deficient number, since it is larger than the sum of its proper divisors (7985).

10778623 is an equidigital number, since it uses as much as digits as its factorization.

10778623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 10778623 is about 3283.0813270463. The cubic root of 10778623 is about 220.8959536983.

The spelling of 10778623 in words is "ten million, seven hundred seventy-eight thousand, six hundred twenty-three".