3086667921 has 4 divisors (see below), whose sum is σ = 4115557232. Its totient is φ = 2057778612.

The previous prime is 3086667911. The next prime is 3086667929. The reversal of 3086667921 is 1297666803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1297666803 = 3 ⋅432555601.

It is not a de Polignac number, because 3086667921 - 2⁵ = 3086667889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3086667929) 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, 514444651 + ... + 514444656.

It is an arithmetic number, because the mean of its divisors is an integer number (1028889308).

Almost surely, 2^3086667921 is an apocalyptic number.

It is an amenable number.

3086667921 is a deficient number, since it is larger than the sum of its proper divisors (1028889311).

3086667921 is a wasteful number, since it uses less digits than its factorization.

3086667921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028889310.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 3086667921 is about 55557.7890218824. The cubic root of 3086667921 is about 1456.0064632167.

The spelling of 3086667921 in words is "three billion, eighty-six million, six hundred sixty-seven thousand, nine hundred twenty-one".