507858989 has 8 divisors (see below), whose sum is σ = 560704032. Its totient is φ = 456126640.

The previous prime is 507858959. The next prime is 507859039. The reversal of 507858989 is 989858705.

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 507858989 - 2¹⁶ = 507793453 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507858959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277214 + ... + 279039.

It is an arithmetic number, because the mean of its divisors is an integer number (70088004).

Almost surely, 2^507858989 is an apocalyptic number.

It is an amenable number.

507858989 is a deficient number, since it is larger than the sum of its proper divisors (52845043).

507858989 is a wasteful number, since it uses less digits than its factorization.

507858989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556347.

The product of its (nonzero) digits is 7257600, while the sum is 59.

The square root of 507858989 is about 22535.7269463401. The cubic root of 507858989 is about 797.8373825627.

The spelling of 507858989 in words is "five hundred seven million, eight hundred fifty-eight thousand, nine hundred eighty-nine".