10778621 has 8 divisors (see below), whose sum is σ = 12364224. Its totient is φ = 9204480.

The previous prime is 10778611. The next prime is 10778627. The reversal of 10778621 is 12687701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10778621 - 2¹⁴ = 10762237 is a prime.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740 + ... + 4701.

It is an arithmetic number, because the mean of its divisors is an integer number (1545528).

Almost surely, 2^10778621 is an apocalyptic number.

It is an amenable number.

10778621 is a deficient number, since it is larger than the sum of its proper divisors (1585603).

10778621 is an equidigital number, since it uses as much as digits as its factorization.

10778621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5731.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 10778621 is about 3283.0810224544. The cubic root of 10778621 is about 220.8959400357.

The spelling of 10778621 in words is "ten million, seven hundred seventy-eight thousand, six hundred twenty-one".