734123889 has 6 divisors (see below), whose sum is σ = 1060401186. Its totient is φ = 489415920.

The previous prime is 734123861. The next prime is 734123899. The reversal of 734123889 is 988321437.

It can be written as a sum of positive squares in only one way, i.e., 656384400 + 77739489 = 25620^2 + 8817^2 .

It is not a de Polignac number, because 734123889 - 2⁵ = 734123857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (734123809) 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 5 ways as a sum of consecutive naturals, for example, 40784652 + ... + 40784669.

It is an arithmetic number, because the mean of its divisors is an integer number (176733531).

Almost surely, 2^734123889 is an apocalyptic number.

It is an amenable number.

734123889 is a deficient number, since it is larger than the sum of its proper divisors (326277297).

734123889 is a wasteful number, since it uses less digits than its factorization.

734123889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81569327 (or 81569324 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 734123889 is about 27094.7206850338. The cubic root of 734123889 is about 902.1036752987.

The spelling of 734123889 in words is "seven hundred thirty-four million, one hundred twenty-three thousand, eight hundred eighty-nine".