748969961 has 2 divisors, whose sum is σ = 748969962. Its totient is φ = 748969960.

The previous prime is 748969943. The next prime is 748969967. The reversal of 748969961 is 169969847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748843225 + 126736 = 27365^2 + 356^2 .

It is an emirp because it is prime and its reverse (169969847) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748969961 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 748969961.

It is not a weakly prime, because it can be changed into another prime (748969967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374484980 + 374484981.

It is an arithmetic number, because the mean of its divisors is an integer number (374484981).

Almost surely, 2^748969961 is an apocalyptic number.

It is an amenable number.

748969961 is a deficient number, since it is larger than the sum of its proper divisors (1).

748969961 is an equidigital number, since it uses as much as digits as its factorization.

748969961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 59.

The square root of 748969961 is about 27367.3155607195. The cubic root of 748969961 is about 908.1441713960.

The spelling of 748969961 in words is "seven hundred forty-eight million, nine hundred sixty-nine thousand, nine hundred sixty-one".