18970507 has 8 divisors (see below), whose sum is σ = 19289600. Its totient is φ = 18653544.

The previous prime is 18970489. The next prime is 18970513. The reversal of 18970507 is 70507981.

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 18970507 - 2²³ = 10581899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18970517) 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, 34408 + ... + 34954.

It is an arithmetic number, because the mean of its divisors is an integer number (2411200).

Almost surely, 2^18970507 is an apocalyptic number.

18970507 is a deficient number, since it is larger than the sum of its proper divisors (319093).

18970507 is an equidigital number, since it uses as much as digits as its factorization.

18970507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 18970507 is about 4355.5145505439. The cubic root of 18970507 is about 266.7020246519.

The spelling of 18970507 in words is "eighteen million, nine hundred seventy thousand, five hundred seven".