1670740707 has 16 divisors (see below), whose sum is σ = 2281479200. Its totient is φ = 1087229952.

The previous prime is 1670740679. The next prime is 1670740711. The reversal of 1670740707 is 7070470761.

It is not a de Polignac number, because 1670740707 - 2⁸ = 1670740451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1670740717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18082 + ... + 60567.

It is an arithmetic number, because the mean of its divisors is an integer number (142592450).

Almost surely, 2^1670740707 is an apocalyptic number.

1670740707 is a deficient number, since it is larger than the sum of its proper divisors (610738493).

1670740707 is an equidigital number, since it uses as much as digits as its factorization.

1670740707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78822.

The product of its (nonzero) digits is 57624, while the sum is 39.

The square root of 1670740707 is about 40874.6951915241. The cubic root of 1670740707 is about 1186.5963771946.

The spelling of 1670740707 in words is "one billion, six hundred seventy million, seven hundred forty thousand, seven hundred seven".