10278985 has 8 divisors (see below), whose sum is σ = 12359880. Its totient is φ = 8206464.

The previous prime is 10278977. The next prime is 10278991. The reversal of 10278985 is 58987201.

It can be written as a sum of positive squares in 4 ways, for example, as 594441 + 9684544 = 771^2 + 3112^2 .

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 10278985 - 2³ = 10278977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 4651.

It is an arithmetic number, because the mean of its divisors is an integer number (1544985).

Almost surely, 2^10278985 is an apocalyptic number.

It is an amenable number.

10278985 is a deficient number, since it is larger than the sum of its proper divisors (2080895).

10278985 is an equidigital number, since it uses as much as digits as its factorization.

10278985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 10278985 is about 3206.0856195679. The cubic root of 10278985 is about 217.4286373536.

The spelling of 10278985 in words is "ten million, two hundred seventy-eight thousand, nine hundred eighty-five".