747563261 has 2 divisors, whose sum is σ = 747563262. Its totient is φ = 747563260.

The previous prime is 747563237. The next prime is 747563293. The reversal of 747563261 is 162365747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420496036 + 327067225 = 20506^2 + 18085^2 .

It is a cyclic number.

It is not a de Polignac number, because 747563261 - 2¹⁸ = 747301117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (747563221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373781630 + 373781631.

It is an arithmetic number, because the mean of its divisors is an integer number (373781631).

Almost surely, 2^747563261 is an apocalyptic number.

It is an amenable number.

747563261 is a deficient number, since it is larger than the sum of its proper divisors (1).

747563261 is an equidigital number, since it uses as much as digits as its factorization.

747563261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 41.

The square root of 747563261 is about 27341.6031168620. The cubic root of 747563261 is about 907.5752624985.

The spelling of 747563261 in words is "seven hundred forty-seven million, five hundred sixty-three thousand, two hundred sixty-one".