734491985 has 8 divisors (see below), whose sum is σ = 887732160. Its totient is φ = 583365744.

The previous prime is 734491981. The next prime is 734492009. The reversal of 734491985 is 589194437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 734491985 - 2² = 734491981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (734491981) 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 in 7 ways as a sum of consecutive naturals, for example, 527717 + ... + 529106.

It is an arithmetic number, because the mean of its divisors is an integer number (110966520).

Almost surely, 2^734491985 is an apocalyptic number.

It is an amenable number.

734491985 is a deficient number, since it is larger than the sum of its proper divisors (153240175).

734491985 is a wasteful number, since it uses less digits than its factorization.

734491985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056967.

The product of its digits is 1088640, while the sum is 50.

The square root of 734491985 is about 27101.5125961633. The cubic root of 734491985 is about 902.2544242734.

The spelling of 734491985 in words is "seven hundred thirty-four million, four hundred ninety-one thousand, nine hundred eighty-five".