1672870939 has 2 divisors, whose sum is σ = 1672870940. Its totient is φ = 1672870938.

The previous prime is 1672870933. The next prime is 1672870951. The reversal of 1672870939 is 9390782761.

It is a weak prime.

It is an emirp because it is prime and its reverse (9390782761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1672870939 - 2³ = 1672870931 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672870931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836435469 + 836435470.

It is an arithmetic number, because the mean of its divisors is an integer number (836435470).

Almost surely, 2^1672870939 is an apocalyptic number.

1672870939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672870939 is an equidigital number, since it uses as much as digits as its factorization.

1672870939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 1672870939 is about 40900.7449687655. The cubic root of 1672870939 is about 1187.1004753711.

The spelling of 1672870939 in words is "one billion, six hundred seventy-two million, eight hundred seventy thousand, nine hundred thirty-nine".