18413701 has 4 divisors (see below), whose sum is σ = 18426112. Its totient is φ = 18401292.

The previous prime is 18413699. The next prime is 18413713. The reversal of 18413701 is 10731481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10731481 = 617 ⋅17393.

It is a cyclic number.

It is not a de Polignac number, because 18413701 - 2¹ = 18413699 is a prime.

It is a super-3 number, since 3×18413701³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18413741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3621 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (4606528).

Almost surely, 2^18413701 is an apocalyptic number.

It is an amenable number.

18413701 is a deficient number, since it is larger than the sum of its proper divisors (12411).

18413701 is a wasteful number, since it uses less digits than its factorization.

18413701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12410.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 18413701 is about 4291.1188517681. The cubic root of 18413701 is about 264.0667349274.

The spelling of 18413701 in words is "eighteen million, four hundred thirteen thousand, seven hundred one".