66832089 has 16 divisors (see below), whose sum is σ = 93405312. Its totient is φ = 42424448.

The previous prime is 66832081. The next prime is 66832097. The reversal of 66832089 is 98023866.

It is an interprime number because it is at equal distance from previous prime (66832081) and next prime (66832097).

It is a cyclic number.

It is not a de Polignac number, because 66832089 - 2³ = 66832081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66832089.

It is not an unprimeable number, because it can be changed into a prime (66832081) 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, 13999 + ... + 18155.

It is an arithmetic number, because the mean of its divisors is an integer number (5837832).

Almost surely, 2^66832089 is an apocalyptic number.

66832089 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

66832089 is a deficient number, since it is larger than the sum of its proper divisors (26573223).

66832089 is a wasteful number, since it uses less digits than its factorization.

66832089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 66832089 is about 8175.0895407940. The cubic root of 66832089 is about 405.8152333741.

The spelling of 66832089 in words is "sixty-six million, eight hundred thirty-two thousand, eighty-nine".