734666521 has 8 divisors (see below), whose sum is σ = 773706080. Its totient is φ = 695664288.

The previous prime is 734666503. The next prime is 734666539. The reversal of 734666521 is 125666437.

It is an interprime number because it is at equal distance from previous prime (734666503) and next prime (734666539).

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 734666521 - 2¹³ = 734658329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (734666221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37030 + ... + 53296.

It is an arithmetic number, because the mean of its divisors is an integer number (96713260).

Almost surely, 2^734666521 is an apocalyptic number.

It is an amenable number.

734666521 is a deficient number, since it is larger than the sum of its proper divisors (39039559).

734666521 is a wasteful number, since it uses less digits than its factorization.

734666521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18663.

The product of its digits is 181440, while the sum is 40.

The square root of 734666521 is about 27104.7324465673. The cubic root of 734666521 is about 902.3258856414.

The spelling of 734666521 in words is "seven hundred thirty-four million, six hundred sixty-six thousand, five hundred twenty-one".