1672040879 has 2 divisors, whose sum is σ = 1672040880. Its totient is φ = 1672040878.

The previous prime is 1672040863. The next prime is 1672040917. The reversal of 1672040879 is 9780402761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1672040879 - 2⁴ = 1672040863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672040819) 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, 836020439 + 836020440.

It is an arithmetic number, because the mean of its divisors is an integer number (836020440).

Almost surely, 2^1672040879 is an apocalyptic number.

1672040879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672040879 is an equidigital number, since it uses as much as digits as its factorization.

1672040879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1672040879 is about 40890.5964617783. The cubic root of 1672040879 is about 1186.9041008595.

The spelling of 1672040879 in words is "one billion, six hundred seventy-two million, forty thousand, eight hundred seventy-nine".