747532813 has 2 divisors, whose sum is σ = 747532814. Its totient is φ = 747532812.

The previous prime is 747532781. The next prime is 747532831. The reversal of 747532813 is 318235747.

It is a happy number.

Together with next prime (747532831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644042884 + 103489929 = 25378^2 + 10173^2 .

It is an emirp because it is prime and its reverse (318235747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 747532813 - 2⁵ = 747532781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747532843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373766406 + 373766407.

It is an arithmetic number, because the mean of its divisors is an integer number (373766407).

Almost surely, 2^747532813 is an apocalyptic number.

It is an amenable number.

747532813 is a deficient number, since it is larger than the sum of its proper divisors (1).

747532813 is an equidigital number, since it uses as much as digits as its factorization.

747532813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 747532813 is about 27341.0463040462. The cubic root of 747532813 is about 907.5629405862.

The spelling of 747532813 in words is "seven hundred forty-seven million, five hundred thirty-two thousand, eight hundred thirteen".