82988009 has 8 divisors (see below), whose sum is σ = 90706560. Its totient is φ = 75460176.

The previous prime is 82987981. The next prime is 82988021. The reversal of 82988009 is 90088928.

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 82988009 - 2¹⁶ = 82922473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82988039) 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, 46769 + ... + 48510.

It is an arithmetic number, because the mean of its divisors is an integer number (11338320).

Almost surely, 2^82988009 is an apocalyptic number.

It is an amenable number.

82988009 is a deficient number, since it is larger than the sum of its proper divisors (7718551).

82988009 is a wasteful number, since it uses less digits than its factorization.

82988009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95359.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 82988009 is about 9109.7754637532. The cubic root of 82988009 is about 436.1860598730.

The spelling of 82988009 in words is "eighty-two million, nine hundred eighty-eight thousand, nine".