744898 has 24 divisors (see below), whose sum is σ = 1419984. Its totient is φ = 289800.

The previous prime is 744893. The next prime is 744911. The reversal of 744898 is 898447.

It is a self number, because there is not a number n which added to its sum of digits gives 744898.

It is not an unprimeable number, because it can be changed into a prime (744893) by changing a digit.

744898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 11 ways as a sum of consecutive naturals, for example, 733 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (59166).

2⁷⁴⁴⁸⁹⁸ is an apocalyptic number.

744898 is a deficient number, since it is larger than the sum of its proper divisors (675086).

744898 is a wasteful number, since it uses less digits than its factorization.

744898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 711 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 744898 is about 863.0747360455. The cubic root of 744898 is about 90.6495396090.

The spelling of 744898 in words is "seven hundred forty-four thousand, eight hundred ninety-eight".