749492047 has 2 divisors, whose sum is σ = 749492048. Its totient is φ = 749492046.

The previous prime is 749492041. The next prime is 749492057. The reversal of 749492047 is 740294947.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749492047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 749491988 and 749492006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749492041) 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, 374746023 + 374746024.

It is an arithmetic number, because the mean of its divisors is an integer number (374746024).

Almost surely, 2^749492047 is an apocalyptic number.

749492047 is a deficient number, since it is larger than the sum of its proper divisors (1).

749492047 is an equidigital number, since it uses as much as digits as its factorization.

749492047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 749492047 is about 27376.8523939477. The cubic root of 749492047 is about 908.3551363469.

The spelling of 749492047 in words is "seven hundred forty-nine million, four hundred ninety-two thousand, forty-seven".