1670740763 has 2 divisors, whose sum is σ = 1670740764. Its totient is φ = 1670740762.

The previous prime is 1670740727. The next prime is 1670740787. The reversal of 1670740763 is 3670470761.

It is a strong prime.

It is an emirp because it is prime and its reverse (3670470761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1670740763 - 2¹⁰ = 1670739739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1670740763.

It is not a weakly prime, because it can be changed into another prime (1670740063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835370381 + 835370382.

It is an arithmetic number, because the mean of its divisors is an integer number (835370382).

Almost surely, 2^1670740763 is an apocalyptic number.

1670740763 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670740763 is an equidigital number, since it uses as much as digits as its factorization.

1670740763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 1670740763 is about 40874.6958765445. The cubic root of 1670740763 is about 1186.5963904520.

The spelling of 1670740763 in words is "one billion, six hundred seventy million, seven hundred forty thousand, seven hundred sixty-three".