10399618 has 4 divisors (see below), whose sum is σ = 15599430. Its totient is φ = 5199808.

The previous prime is 10399573. The next prime is 10399619. The reversal of 10399618 is 81699301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81699301 = 47 ⋅1738283.

It can be written as a sum of positive squares in only one way, i.e., 9715689 + 683929 = 3117^2 + 827^2 .

It is not an unprimeable number, because it can be changed into a prime (10399619) 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 as a sum of consecutive naturals, namely, 2599903 + ... + 2599906.

Almost surely, 2^10399618 is an apocalyptic number.

10399618 is a deficient number, since it is larger than the sum of its proper divisors (5199812).

10399618 is an equidigital number, since it uses as much as digits as its factorization.

10399618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199811.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 10399618 is about 3224.8438721898. The cubic root of 10399618 is about 218.2759040662.

The spelling of 10399618 in words is "ten million, three hundred ninety-nine thousand, six hundred eighteen".