69327991 has 8 divisors (see below), whose sum is σ = 70326144. Its totient is φ = 68333880.

The previous prime is 69327983. The next prime is 69328001. The reversal of 69327991 is 19972396.

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 69327991 - 2³ = 69327983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69327901) 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, 53056 + ... + 54346.

It is an arithmetic number, because the mean of its divisors is an integer number (8790768).

Almost surely, 2^69327991 is an apocalyptic number.

69327991 is a deficient number, since it is larger than the sum of its proper divisors (998153).

69327991 is a wasteful number, since it uses less digits than its factorization.

69327991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021.

The product of its digits is 183708, while the sum is 46.

The square root of 69327991 is about 8326.3431949446. The cubic root of 69327991 is about 410.8054580594.

The spelling of 69327991 in words is "sixty-nine million, three hundred twenty-seven thousand, nine hundred ninety-one".