1061681884 has 12 divisors (see below), whose sum is σ = 1880328744. Its totient is φ = 524445104.

The previous prime is 1061681857. The next prime is 1061681891. The reversal of 1061681884 is 4881861601.

It is a super-2 number, since 2×1061681884² = 2254336845627578912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1061681884.

It is a congruent 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, 1598587 + ... + 1599250.

It is an arithmetic number, because the mean of its divisors is an integer number (156694062).

Almost surely, 2^1061681884 is an apocalyptic number.

It is an amenable number.

1061681884 is a deficient number, since it is larger than the sum of its proper divisors (818646860).

1061681884 is a wasteful number, since it uses less digits than its factorization.

1061681884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197924 (or 3197922 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 1061681884 is about 32583.4602827876. The cubic root of 1061681884 is about 1020.1518049082.

The spelling of 1061681884 in words is "one billion, sixty-one million, six hundred eighty-one thousand, eight hundred eighty-four".