1671061964 has 96 divisors (see below), whose sum is σ = 3637509120. Its totient is φ = 660844800.

The previous prime is 1671061961. The next prime is 1671061979. The reversal of 1671061964 is 4691601761.

It is not an unprimeable number, because it can be changed into a prime (1671061961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933182 + ... + 934970.

It is an arithmetic number, because the mean of its divisors is an integer number (37890720).

Almost surely, 2^1671061964 is an apocalyptic number.

It is an amenable number.

1671061964 is an abundant number, since it is smaller than the sum of its proper divisors (1966447156).

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

1671061964 is a wasteful number, since it uses less digits than its factorization.

1671061964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1671061964 is about 40878.6247811738. The cubic root of 1671061964 is about 1186.6724268892.

The spelling of 1671061964 in words is "one billion, six hundred seventy-one million, sixty-one thousand, nine hundred sixty-four".