1671992983 has 4 divisors (see below), whose sum is σ = 1672131888. Its totient is φ = 1671854080.

The previous prime is 1671992957. The next prime is 1671993007. The reversal of 1671992983 is 3892991761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3892991761 = 37963 ⋅102547.

It is a cyclic number.

It is not a de Polignac number, because 1671992983 - 2²¹ = 1669895831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671992953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49483 + ... + 76108.

It is an arithmetic number, because the mean of its divisors is an integer number (418032972).

Almost surely, 2^1671992983 is an apocalyptic number.

1671992983 is a deficient number, since it is larger than the sum of its proper divisors (138905).

1671992983 is a wasteful number, since it uses less digits than its factorization.

1671992983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138904.

The product of its digits is 1469664, while the sum is 55.

The square root of 1671992983 is about 40890.0107972595. The cubic root of 1671992983 is about 1186.8927677032.

The spelling of 1671992983 in words is "one billion, six hundred seventy-one million, nine hundred ninety-two thousand, nine hundred eighty-three".