1670936988 has 96 divisors (see below), whose sum is σ = 4706007040. Its totient is φ = 450774720.

The previous prime is 1670936977. The next prime is 1670936999. The reversal of 1670936988 is 8896390761.

It is an interprime number because it is at equal distance from previous prime (1670936977) and next prime (1670936999).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526695 + ... + 529857.

Almost surely, 2^1670936988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670936988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353003520).

1670936988 is an abundant number, since it is smaller than the sum of its proper divisors (3035070052).

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

1670936988 is a wasteful number, since it uses less digits than its factorization.

1670936988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 1670936988 is about 40877.0961297399. The cubic root of 1670936988 is about 1186.6428430530.

The spelling of 1670936988 in words is "one billion, six hundred seventy million, nine hundred thirty-six thousand, nine hundred eighty-eight".