756864481 has 4 divisors (see below), whose sum is σ = 756971200. Its totient is φ = 756757764.

The previous prime is 756864443. The next prime is 756864491. The reversal of 756864481 is 184468657.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 756864481 - 2¹⁷ = 756733409 is a prime.

It is a super-2 number, since 2×756864481² = 1145687685198798722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (756864491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41901 + ... + 57178.

It is an arithmetic number, because the mean of its divisors is an integer number (189242800).

Almost surely, 2^756864481 is an apocalyptic number.

It is an amenable number.

756864481 is a deficient number, since it is larger than the sum of its proper divisors (106719).

756864481 is an equidigital number, since it uses as much as digits as its factorization.

756864481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106718.

The product of its digits is 1290240, while the sum is 49.

The square root of 756864481 is about 27511.1701132467. The cubic root of 756864481 is about 911.3237912348.

The spelling of 756864481 in words is "seven hundred fifty-six million, eight hundred sixty-four thousand, four hundred eighty-one".