18770713 has 8 divisors (see below), whose sum is σ = 20304648. Its totient is φ = 17249664.

The previous prime is 18770711. The next prime is 18770753. The reversal of 18770713 is 31707781.

It can be written as a sum of positive squares in 4 ways, for example, as 4489 + 18766224 = 67^2 + 4332^2 .

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 18770713 - 2¹ = 18770711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18770711) 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 7 ways as a sum of consecutive naturals, for example, 70 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (2538081).

Almost surely, 2^18770713 is an apocalyptic number.

18770713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18770713 is a deficient number, since it is larger than the sum of its proper divisors (1533935).

18770713 is a wasteful number, since it uses less digits than its factorization.

18770713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 18770713 is about 4332.5180899795. The cubic root of 18770713 is about 265.7624322816.

The spelling of 18770713 in words is "eighteen million, seven hundred seventy thousand, seven hundred thirteen".