1670552887 has 2 divisors, whose sum is σ = 1670552888. Its totient is φ = 1670552886.

The previous prime is 1670552843. The next prime is 1670552999. The reversal of 1670552887 is 7882550761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1670552887 - 2⁷ = 1670552759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1670552887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670552837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835276443 + 835276444.

It is an arithmetic number, because the mean of its divisors is an integer number (835276444).

Almost surely, 2^1670552887 is an apocalyptic number.

1670552887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670552887 is an equidigital number, since it uses as much as digits as its factorization.

1670552887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 49.

The square root of 1670552887 is about 40872.3976174631. The cubic root of 1670552887 is about 1186.5519109123.

The spelling of 1670552887 in words is "one billion, six hundred seventy million, five hundred fifty-two thousand, eight hundred eighty-seven".