67575989 has 16 divisors (see below), whose sum is σ = 78247680. Its totient is φ = 57827520.

The previous prime is 67575979. The next prime is 67576021. The reversal of 67575989 is 98957576.

It is a cyclic number.

It is not a de Polignac number, because 67575989 - 2²⁰ = 66527413 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 (67575929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8699 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (4890480).

Almost surely, 2^67575989 is an apocalyptic number.

It is an amenable number.

67575989 is a deficient number, since it is larger than the sum of its proper divisors (10671691).

67575989 is a wasteful number, since it uses less digits than its factorization.

67575989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900.

The product of its digits is 4762800, while the sum is 56.

The square root of 67575989 is about 8220.4616050438. The cubic root of 67575989 is about 407.3153747311.

The spelling of 67575989 in words is "sixty-seven million, five hundred seventy-five thousand, nine hundred eighty-nine".