749205851 has 2 divisors, whose sum is σ = 749205852. Its totient is φ = 749205850.

The previous prime is 749205817. The next prime is 749205857. The reversal of 749205851 is 158502947.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749205851 is a prime.

It is a super-2 number, since 2×749205851² = 1122618814345268402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749205799 and 749205808.

It is not a weakly prime, because it can be changed into another prime (749205857) 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, 374602925 + 374602926.

It is an arithmetic number, because the mean of its divisors is an integer number (374602926).

Almost surely, 2^749205851 is an apocalyptic number.

749205851 is a deficient number, since it is larger than the sum of its proper divisors (1).

749205851 is an equidigital number, since it uses as much as digits as its factorization.

749205851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 749205851 is about 27371.6249243628. The cubic root of 749205851 is about 908.2395021631.

The spelling of 749205851 in words is "seven hundred forty-nine million, two hundred five thousand, eight hundred fifty-one".