3291609887 has 8 divisors (see below), whose sum is σ = 3485916000. Its totient is φ = 3097379584.

The previous prime is 3291609877. The next prime is 3291609907. The reversal of 3291609887 is 7889061923.

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 3291609887 - 2¹² = 3291605791 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 (3291609877) 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, 87614 + ... + 119412.

It is an arithmetic number, because the mean of its divisors is an integer number (435739500).

Almost surely, 2^3291609887 is an apocalyptic number.

3291609887 is a deficient number, since it is larger than the sum of its proper divisors (194306113).

3291609887 is a wasteful number, since it uses less digits than its factorization.

3291609887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37905.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 3291609887 is about 57372.5534293184. The cubic root of 3291609887 is about 1487.5427400285.

The spelling of 3291609887 in words is "three billion, two hundred ninety-one million, six hundred nine thousand, eight hundred eighty-seven".