10978487 has 4 divisors (see below), whose sum is σ = 11823000. Its totient is φ = 10133976.

The previous prime is 10978483. The next prime is 10978519. The reversal of 10978487 is 78487901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10978487 - 2² = 10978483 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 (10978483) 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, 422237 + ... + 422262.

It is an arithmetic number, because the mean of its divisors is an integer number (2955750).

Almost surely, 2^10978487 is an apocalyptic number.

10978487 is a deficient number, since it is larger than the sum of its proper divisors (844513).

10978487 is an equidigital number, since it uses as much as digits as its factorization.

10978487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844512.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 10978487 is about 3313.3799963180. The cubic root of 10978487 is about 222.2529311543.

The spelling of 10978487 in words is "ten million, nine hundred seventy-eight thousand, four hundred eighty-seven".