749797187 has 2 divisors, whose sum is σ = 749797188. Its totient is φ = 749797186.

The previous prime is 749797163. The next prime is 749797219. The reversal of 749797187 is 781797947.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 749797187 - 2¹² = 749793091 is a prime.

It is a super-2 number, since 2×749797187² = 1124391643266225938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (749797687) 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, 374898593 + 374898594.

It is an arithmetic number, because the mean of its divisors is an integer number (374898594).

Almost surely, 2^749797187 is an apocalyptic number.

749797187 is a deficient number, since it is larger than the sum of its proper divisors (1).

749797187 is an equidigital number, since it uses as much as digits as its factorization.

749797187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6223392, while the sum is 59.

The square root of 749797187 is about 27382.4247830611. The cubic root of 749797187 is about 908.4783922153.

The spelling of 749797187 in words is "seven hundred forty-nine million, seven hundred ninety-seven thousand, one hundred eighty-seven".