85389507 has 48 divisors (see below), whose sum is σ = 145600000. Its totient is φ = 48199536.

The previous prime is 85389463. The next prime is 85389509. The reversal of 85389507 is 70598358.

It is not a de Polignac number, because 85389507 - 2⁸ = 85389251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85389509) 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 47 ways as a sum of consecutive naturals, for example, 428994 + ... + 429192.

Almost surely, 2^85389507 is an apocalyptic number.

85389507 is a deficient number, since it is larger than the sum of its proper divisors (60210493).

85389507 is a wasteful number, since it uses less digits than its factorization.

85389507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 85389507 is about 9240.6442957188. The cubic root of 85389507 is about 440.3535502045.

The spelling of 85389507 in words is "eighty-five million, three hundred eighty-nine thousand, five hundred seven".