190689713 has 4 divisors (see below), whose sum is σ = 190982388. Its totient is φ = 190397040.

The previous prime is 190689689. The next prime is 190689727. The reversal of 190689713 is 317986091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60341824 + 130347889 = 7768^2 + 11417^2 .

It is a cyclic number.

It is not a de Polignac number, because 190689713 - 2²² = 186495409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190689013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145358 + ... + 146663.

It is an arithmetic number, because the mean of its divisors is an integer number (47745597).

Almost surely, 2^190689713 is an apocalyptic number.

It is an amenable number.

190689713 is a deficient number, since it is larger than the sum of its proper divisors (292675).

190689713 is an equidigital number, since it uses as much as digits as its factorization.

190689713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292674.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 190689713 is about 13809.0446085166. The cubic root of 190689713 is about 575.5844975182.

It can be divided in two parts, 1906 and 89713, that added together give a palindrome (91619).

The spelling of 190689713 in words is "one hundred ninety million, six hundred eighty-nine thousand, seven hundred thirteen".