1946672887 has 2 divisors, whose sum is σ = 1946672888. Its totient is φ = 1946672886.

The previous prime is 1946672863. The next prime is 1946673013. The reversal of 1946672887 is 7882766491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1946672887 - 2²⁷ = 1812455159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946676887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973336443 + 973336444.

It is an arithmetic number, because the mean of its divisors is an integer number (973336444).

Almost surely, 2^1946672887 is an apocalyptic number.

1946672887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946672887 is an equidigital number, since it uses as much as digits as its factorization.

1946672887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 58.

The square root of 1946672887 is about 44121.1161123560. The cubic root of 1946672887 is about 1248.6220307454.

The spelling of 1946672887 in words is "one billion, nine hundred forty-six million, six hundred seventy-two thousand, eight hundred eighty-seven".