7172890946 has 8 divisors (see below), whose sum is σ = 11586977724. Its totient is φ = 3310565040.

The previous prime is 7172890909. The next prime is 7172890993. The reversal of 7172890946 is 6490982717.

It can be written as a sum of positive squares in 2 ways, for example, as 7172226721 + 664225 = 84689^2 + 815^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137940185 + ... + 137940236.

Almost surely, 2^7172890946 is an apocalyptic number.

7172890946 is a deficient number, since it is larger than the sum of its proper divisors (4414086778).

7172890946 is a wasteful number, since it uses less digits than its factorization.

7172890946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275880436.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 7172890946 is about 84692.9214633667. The cubic root of 7172890946 is about 1928.5522486767.

The spelling of 7172890946 in words is "seven billion, one hundred seventy-two million, eight hundred ninety thousand, nine hundred forty-six".