531374789 has 8 divisors (see below), whose sum is σ = 588334368. Its totient is φ = 475857360.

The previous prime is 531374771. The next prime is 531374807. The reversal of 531374789 is 987473135.

It is an interprime number because it is at equal distance from previous prime (531374771) and next prime (531374807).

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

It is not a de Polignac number, because 531374789 - 2¹⁶ = 531309253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531374089) 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, 359762 + ... + 361235.

It is an arithmetic number, because the mean of its divisors is an integer number (73541796).

Almost surely, 2^531374789 is an apocalyptic number.

It is an amenable number.

531374789 is a deficient number, since it is larger than the sum of its proper divisors (56959579).

531374789 is a wasteful number, since it uses less digits than its factorization.

531374789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721075.

The product of its digits is 635040, while the sum is 47.

The square root of 531374789 is about 23051.5680377713. The cubic root of 531374789 is about 809.9663599299.

The spelling of 531374789 in words is "five hundred thirty-one million, three hundred seventy-four thousand, seven hundred eighty-nine".