10387018 has 4 divisors (see below), whose sum is σ = 15580530. Its totient is φ = 5193508.

The previous prime is 10387001. The next prime is 10387031. The reversal of 10387018 is 81078301.

It is a happy number.

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., 5489649 + 4897369 = 2343^2 + 2213^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2596753 + ... + 2596756.

Almost surely, 2^10387018 is an apocalyptic number.

10387018 is a deficient number, since it is larger than the sum of its proper divisors (5193512).

10387018 is an equidigital number, since it uses as much as digits as its factorization.

10387018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193511.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 10387018 is about 3222.8896971507. The cubic root of 10387018 is about 218.1877153183.

The spelling of 10387018 in words is "ten million, three hundred eighty-seven thousand, eighteen".