1970983871 has 8 divisors (see below), whose sum is σ = 2007309024. Its totient is φ = 1934788320.

The previous prime is 1970983801. The next prime is 1970983897. The reversal of 1970983871 is 1783890791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970983871 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 (1970983801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 62801.

It is an arithmetic number, because the mean of its divisors is an integer number (250913628).

Almost surely, 2^1970983871 is an apocalyptic number.

1970983871 is a deficient number, since it is larger than the sum of its proper divisors (36325153).

1970983871 is an equidigital number, since it uses as much as digits as its factorization.

1970983871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64801.

The product of its (nonzero) digits is 762048, while the sum is 53.

The square root of 1970983871 is about 44395.7641110050. The cubic root of 1970983871 is about 1253.7983388867.

The spelling of 1970983871 in words is "one billion, nine hundred seventy million, nine hundred eighty-three thousand, eight hundred seventy-one".