3090687881 has 2 divisors, whose sum is σ = 3090687882. Its totient is φ = 3090687880.

The previous prime is 3090687869. The next prime is 3090687913. The reversal of 3090687881 is 1887860903.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2629125625 + 461562256 = 51275^2 + 21484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3090687881 is a prime.

It is a super-2 number, since 2×3090687881² = 19104703155520540322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3090687841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1545343940 + 1545343941.

It is an arithmetic number, because the mean of its divisors is an integer number (1545343941).

Almost surely, 2^3090687881 is an apocalyptic number.

It is an amenable number.

3090687881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3090687881 is an equidigital number, since it uses as much as digits as its factorization.

3090687881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 3090687881 is about 55593.9554358205. The cubic root of 3090687881 is about 1456.6382716675.

The spelling of 3090687881 in words is "three billion, ninety million, six hundred eighty-seven thousand, eight hundred eighty-one".