1211607968 has 24 divisors (see below), whose sum is σ = 2462302080. Its totient is φ = 586261440.

The previous prime is 1211607959. The next prime is 1211608001. The reversal of 1211607968 is 8697061121.

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, 609698 + ... + 611681.

It is an arithmetic number, because the mean of its divisors is an integer number (102595920).

Almost surely, 2^1211607968 is an apocalyptic number.

It is an amenable number.

1211607968 is an abundant number, since it is smaller than the sum of its proper divisors (1250694112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211607968 is a wasteful number, since it uses less digits than its factorization.

1211607968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221420 (or 1221412 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 1211607968 is about 34808.1595031969. The cubic root of 1211607968 is about 1066.0740538065.

The spelling of 1211607968 in words is "one billion, two hundred eleven million, six hundred seven thousand, nine hundred sixty-eight".