765432001 has 2 divisors, whose sum is σ = 765432002. Its totient is φ = 765432000.

The previous prime is 765431981. The next prime is 765432007. The reversal of 765432001 is 100234567.

765432001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481846401 + 283585600 = 21951^2 + 16840^2 .

It is a cyclic number.

It is not a de Polignac number, because 765432001 - 2⁹ = 765431489 is a prime.

It is a super-2 number, since 2×765432001² = 1171772296309728002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (765432007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382716000 + 382716001.

It is an arithmetic number, because the mean of its divisors is an integer number (382716001).

Almost surely, 2^765432001 is an apocalyptic number.

It is an amenable number.

765432001 is a deficient number, since it is larger than the sum of its proper divisors (1).

765432001 is an equidigital number, since it uses as much as digits as its factorization.

765432001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 765432001 is about 27666.4417842266. The cubic root of 765432001 is about 914.7495511309.

Adding to 765432001 its reverse (100234567), we get a palindrome (865666568).

The spelling of 765432001 in words is "seven hundred sixty-five million, four hundred thirty-two thousand, one".