743798761 has 2 divisors, whose sum is σ = 743798762. Its totient is φ = 743798760.

The previous prime is 743798711. The next prime is 743798777. The reversal of 743798761 is 167897347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466776025 + 277022736 = 21605^2 + 16644^2 .

It is an emirp because it is prime and its reverse (167897347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 743798761 - 2⁹ = 743798249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743798699 and 743798708.

It is not a weakly prime, because it can be changed into another prime (743798701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371899380 + 371899381.

It is an arithmetic number, because the mean of its divisors is an integer number (371899381).

Almost surely, 2^743798761 is an apocalyptic number.

It is an amenable number.

743798761 is a deficient number, since it is larger than the sum of its proper divisors (1).

743798761 is an equidigital number, since it uses as much as digits as its factorization.

743798761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 52.

The square root of 743798761 is about 27272.6742546454. The cubic root of 743798761 is about 906.0492743174.

The spelling of 743798761 in words is "seven hundred forty-three million, seven hundred ninety-eight thousand, seven hundred sixty-one".