82988389 has 8 divisors (see below), whose sum is σ = 90607968. Its totient is φ = 75381360.

The previous prime is 82988377. The next prime is 82988413. The reversal of 82988389 is 98388928.

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 82988389 - 2⁵ = 82988357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82988359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15579 + ... + 20215.

It is an arithmetic number, because the mean of its divisors is an integer number (11325996).

Almost surely, 2^82988389 is an apocalyptic number.

It is an amenable number.

82988389 is a deficient number, since it is larger than the sum of its proper divisors (7619579).

82988389 is a wasteful number, since it uses less digits than its factorization.

82988389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275.

The product of its digits is 1990656, while the sum is 55.

The square root of 82988389 is about 9109.7963204454. The cubic root of 82988389 is about 436.1867256336.

The spelling of 82988389 in words is "eighty-two million, nine hundred eighty-eight thousand, three hundred eighty-nine".