18873070 has 8 divisors (see below), whose sum is σ = 33971544. Its totient is φ = 7549224.

The previous prime is 18873053. The next prime is 18873083. The reversal of 18873070 is 7037881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943644 + ... + 943663.

It is an arithmetic number, because the mean of its divisors is an integer number (4246443).

Almost surely, 2^18873070 is an apocalyptic number.

18873070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18873070 is a deficient number, since it is larger than the sum of its proper divisors (15098474).

18873070 is a wasteful number, since it uses less digits than its factorization.

18873070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887314.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 18873070 is about 4344.3146755271. The cubic root of 18873070 is about 266.2446258108.

The spelling of 18873070 in words is "eighteen million, eight hundred seventy-three thousand, seventy".