747255641 has 4 divisors (see below), whose sum is σ = 815187984. Its totient is φ = 679323300.

The previous prime is 747255637. The next prime is 747255643. The reversal of 747255641 is 146552747.

747255641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 747255641 - 2² = 747255637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747255643) 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, 33966155 + ... + 33966176.

It is an arithmetic number, because the mean of its divisors is an integer number (203796996).

Almost surely, 2^747255641 is an apocalyptic number.

It is an amenable number.

747255641 is a deficient number, since it is larger than the sum of its proper divisors (67932343).

747255641 is a wasteful number, since it uses less digits than its factorization.

747255641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67932342.

The product of its digits is 235200, while the sum is 41.

The square root of 747255641 is about 27335.9770449128. The cubic root of 747255641 is about 907.4507572690.

The spelling of 747255641 in words is "seven hundred forty-seven million, two hundred fifty-five thousand, six hundred forty-one".