946631668 has 6 divisors (see below), whose sum is σ = 1656605426. Its totient is φ = 473315832.

The previous prime is 946631599. The next prime is 946631671. The reversal of 946631668 is 866136649.

It can be written as a sum of positive squares in only one way, i.e., 641710224 + 304921444 = 25332^2 + 17462^2 .

It is a super-2 number, since 2×946631668² = 1792223029720924448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118328955 + ... + 118328962.

Almost surely, 2^946631668 is an apocalyptic number.

It is an amenable number.

946631668 is a deficient number, since it is larger than the sum of its proper divisors (709973758).

946631668 is a wasteful number, since it uses less digits than its factorization.

946631668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236657921 (or 236657919 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 946631668 is about 30767.3799339495. The cubic root of 946631668 is about 981.8843613442.

The spelling of 946631668 in words is "nine hundred forty-six million, six hundred thirty-one thousand, six hundred sixty-eight".