67589081 has 6 divisors (see below), whose sum is σ = 78624090. Its totient is φ = 57933456.

The previous prime is 67589069. The next prime is 67589101. The reversal of 67589081 is 18098576.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47831056 + 19758025 = 6916^2 + 4445^2 .

It is not a de Polignac number, because 67589081 - 2¹⁰ = 67588057 is a prime.

It is a super-2 number, since 2×67589081² = 9136567740849122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67589381) 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 5 ways as a sum of consecutive naturals, for example, 689636 + ... + 689733.

It is an arithmetic number, because the mean of its divisors is an integer number (13104015).

Almost surely, 2^67589081 is an apocalyptic number.

It is an amenable number.

67589081 is a deficient number, since it is larger than the sum of its proper divisors (11035009).

67589081 is a wasteful number, since it uses less digits than its factorization.

67589081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379383 (or 1379376 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 67589081 is about 8221.2578721264. The cubic root of 67589081 is about 407.3416771137.

The spelling of 67589081 in words is "sixty-seven million, five hundred eighty-nine thousand, eighty-one".