1672308091 has 2 divisors, whose sum is σ = 1672308092. Its totient is φ = 1672308090.

The previous prime is 1672308073. The next prime is 1672308101. The reversal of 1672308091 is 1908032761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1672308091 - 2¹³ = 1672299899 is a prime.

It is a super-2 number, since 2×1672308091² = 5593228702448128562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1672308091.

It is not a weakly prime, because it can be changed into another prime (1672308691) 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, 836154045 + 836154046.

It is an arithmetic number, because the mean of its divisors is an integer number (836154046).

Almost surely, 2^1672308091 is an apocalyptic number.

1672308091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672308091 is an equidigital number, since it uses as much as digits as its factorization.

1672308091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1672308091 is about 40893.8637328389. The cubic root of 1672308091 is about 1186.9673246177.

The spelling of 1672308091 in words is "one billion, six hundred seventy-two million, three hundred eight thousand, ninety-one".