1691413323 has 8 divisors (see below), whose sum is σ = 2255971536. Its totient is φ = 1127232000.

The previous prime is 1691413291. The next prime is 1691413331. The reversal of 1691413323 is 3233141961.

It is a happy number.

1691413323 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1691413323 - 2⁵ = 1691413291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1691413343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83578 + ... + 101823.

It is an arithmetic number, because the mean of its divisors is an integer number (281996442).

Almost surely, 2^1691413323 is an apocalyptic number.

1691413323 is a deficient number, since it is larger than the sum of its proper divisors (564558213).

1691413323 is a wasteful number, since it uses less digits than its factorization.

1691413323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188445.

The product of its digits is 11664, while the sum is 33.

The square root of 1691413323 is about 41126.7956811614. The cubic root of 1691413323 is about 1191.4703767280.

The spelling of 1691413323 in words is "one billion, six hundred ninety-one million, four hundred thirteen thousand, three hundred twenty-three".