747871589 has 2 divisors, whose sum is σ = 747871590. Its totient is φ = 747871588.

The previous prime is 747871577. The next prime is 747871637. The reversal of 747871589 is 985178747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657050689 + 90820900 = 25633^2 + 9530^2 .

It is a cyclic number.

It is not a de Polignac number, because 747871589 - 2²⁰ = 746823013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747871549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373935794 + 373935795.

It is an arithmetic number, because the mean of its divisors is an integer number (373935795).

Almost surely, 2^747871589 is an apocalyptic number.

It is an amenable number.

747871589 is a deficient number, since it is larger than the sum of its proper divisors (1).

747871589 is an equidigital number, since it uses as much as digits as its factorization.

747871589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3951360, while the sum is 56.

The square root of 747871589 is about 27347.2409760107. The cubic root of 747871589 is about 907.7000200129.

The spelling of 747871589 in words is "seven hundred forty-seven million, eight hundred seventy-one thousand, five hundred eighty-nine".