672459091 has 2 divisors, whose sum is σ = 672459092. Its totient is φ = 672459090.

The previous prime is 672459079. The next prime is 672459107. The reversal of 672459091 is 190954276.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672459091 - 2¹⁹ = 671934803 is a prime.

It is not a weakly prime, because it can be changed into another prime (672453091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336229545 + 336229546.

It is an arithmetic number, because the mean of its divisors is an integer number (336229546).

Almost surely, 2^672459091 is an apocalyptic number.

672459091 is a deficient number, since it is larger than the sum of its proper divisors (1).

672459091 is an equidigital number, since it uses as much as digits as its factorization.

672459091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 672459091 is about 25931.8161916978. The cubic root of 672459091 is about 876.1032466417.

The spelling of 672459091 in words is "six hundred seventy-two million, four hundred fifty-nine thousand, ninety-one".