10978655 has 4 divisors (see below), whose sum is σ = 13174392. Its totient is φ = 8782920.

The previous prime is 10978633. The next prime is 10978663. The reversal of 10978655 is 55687901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55687901 = 499 ⋅111599.

It is not a de Polignac number, because 10978655 - 2¹⁴ = 10962271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097861 + ... + 1097870.

It is an arithmetic number, because the mean of its divisors is an integer number (3293598).

Almost surely, 2^10978655 is an apocalyptic number.

10978655 is a deficient number, since it is larger than the sum of its proper divisors (2195737).

10978655 is an equidigital number, since it uses as much as digits as its factorization.

10978655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195736.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 10978655 is about 3313.4053479766. The cubic root of 10978655 is about 222.2540648351.

The spelling of 10978655 in words is "ten million, nine hundred seventy-eight thousand, six hundred fifty-five".