10820618 has 4 divisors (see below), whose sum is σ = 16230930. Its totient is φ = 5410308.

The previous prime is 10820617. The next prime is 10820647. The reversal of 10820618 is 81602801.

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

It can be written as a sum of positive squares in only one way, i.e., 8427409 + 2393209 = 2903^2 + 1547^2 .

It is not an unprimeable number, because it can be changed into a prime (10820611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2705153 + ... + 2705156.

Almost surely, 2^10820618 is an apocalyptic number.

10820618 is a deficient number, since it is larger than the sum of its proper divisors (5410312).

10820618 is an equidigital number, since it uses as much as digits as its factorization.

10820618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410311.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 10820618 is about 3289.4707781040. The cubic root of 10820618 is about 221.1824622824.

The spelling of 10820618 in words is "ten million, eight hundred twenty thousand, six hundred eighteen".