747247841 has 2 divisors, whose sum is σ = 747247842. Its totient is φ = 747247840.

The previous prime is 747247817. The next prime is 747247867. The reversal of 747247841 is 148742747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561879616 + 185368225 = 23704^2 + 13615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-747247841 is a prime.

It is a super-2 number, since 2×747247841² = 1116758671758322562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 747247792 and 747247801.

It is not a weakly prime, because it can be changed into another prime (747247141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373623920 + 373623921.

It is an arithmetic number, because the mean of its divisors is an integer number (373623921).

Almost surely, 2^747247841 is an apocalyptic number.

It is an amenable number.

747247841 is a deficient number, since it is larger than the sum of its proper divisors (1).

747247841 is an equidigital number, since it uses as much as digits as its factorization.

747247841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 351232, while the sum is 44.

The square root of 747247841 is about 27335.8343754128. The cubic root of 747247841 is about 907.4475998754.

The spelling of 747247841 in words is "seven hundred forty-seven million, two hundred forty-seven thousand, eight hundred forty-one".