672205711 has 2 divisors, whose sum is σ = 672205712. Its totient is φ = 672205710.

The previous prime is 672205691. The next prime is 672205717. The reversal of 672205711 is 117502276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672205711 - 2¹⁷ = 672074639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672205717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336102855 + 336102856.

It is an arithmetic number, because the mean of its divisors is an integer number (336102856).

Almost surely, 2^672205711 is an apocalyptic number.

672205711 is a deficient number, since it is larger than the sum of its proper divisors (1).

672205711 is an equidigital number, since it uses as much as digits as its factorization.

672205711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 672205711 is about 25926.9302270824. The cubic root of 672205711 is about 875.9931953733.

Adding to 672205711 its reverse (117502276), we get a palindrome (789707987).

The spelling of 672205711 in words is "six hundred seventy-two million, two hundred five thousand, seven hundred eleven".