1971486707 has 2 divisors, whose sum is σ = 1971486708. Its totient is φ = 1971486706.

The previous prime is 1971486689. The next prime is 1971486809. The reversal of 1971486707 is 7076841791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1971486707 - 2²⁰ = 1970438131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1971485707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985743353 + 985743354.

It is an arithmetic number, because the mean of its divisors is an integer number (985743354).

Almost surely, 2^1971486707 is an apocalyptic number.

1971486707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1971486707 is an equidigital number, since it uses as much as digits as its factorization.

1971486707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 50.

The square root of 1971486707 is about 44401.4268577036. The cubic root of 1971486707 is about 1253.9049525336.

The spelling of 1971486707 in words is "one billion, nine hundred seventy-one million, four hundred eighty-six thousand, seven hundred seven".