749464949 has 2 divisors, whose sum is σ = 749464950. Its totient is φ = 749464948.

The previous prime is 749464943. The next prime is 749464957. The reversal of 749464949 is 949464947.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553660900 + 195804049 = 23530^2 + 13993^2 .

It is an emirp because it is prime and its reverse (949464947) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749464949 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 749464894 and 749464903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749464943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374732474 + 374732475.

It is an arithmetic number, because the mean of its divisors is an integer number (374732475).

Almost surely, 2^749464949 is an apocalyptic number.

It is an amenable number.

749464949 is a deficient number, since it is larger than the sum of its proper divisors (1).

749464949 is an equidigital number, since it uses as much as digits as its factorization.

749464949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 56.

The square root of 749464949 is about 27376.3574823241. The cubic root of 749464949 is about 908.3441889752.

The spelling of 749464949 in words is "seven hundred forty-nine million, four hundred sixty-four thousand, nine hundred forty-nine".