748972261 has 2 divisors, whose sum is σ = 748972262. Its totient is φ = 748972260.

The previous prime is 748972223. The next prime is 748972271. The reversal of 748972261 is 162279847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 747749025 + 1223236 = 27345^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 748972261 - 2¹¹ = 748970213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748972201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374486130 + 374486131.

It is an arithmetic number, because the mean of its divisors is an integer number (374486131).

Almost surely, 2^748972261 is an apocalyptic number.

It is an amenable number.

748972261 is a deficient number, since it is larger than the sum of its proper divisors (1).

748972261 is an equidigital number, since it uses as much as digits as its factorization.

748972261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 748972261 is about 27367.3575816154. The cubic root of 748972261 is about 908.1451009969.

The spelling of 748972261 in words is "seven hundred forty-eight million, nine hundred seventy-two thousand, two hundred sixty-one".