749971 has 2 divisors, whose sum is σ = 749972. Its totient is φ = 749970.

The previous prime is 749941. The next prime is 749993. The reversal of 749971 is 179947.

It is a strong prime.

It is an emirp because it is prime and its reverse (179947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 749971 - 2⁵ = 749939 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 749971.

It is not a weakly prime, because it can be changed into another prime (749941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374985 + 374986.

It is an arithmetic number, because the mean of its divisors is an integer number (374986).

2⁷⁴⁹⁹⁷¹ is an apocalyptic number.

749971 is a deficient number, since it is larger than the sum of its proper divisors (1).

749971 is an equidigital number, since it uses as much as digits as its factorization.

749971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 37.

The square root of 749971 is about 866.0086604648. The cubic root of 749971 is about 90.8548585932.

The spelling of 749971 in words is "seven hundred forty-nine thousand, nine hundred seventy-one".