82623889 has 8 divisors (see below), whose sum is σ = 86484672. Its totient is φ = 78785520.

The previous prime is 82623883. The next prime is 82623899. The reversal of 82623889 is 98832628.

It is a happy number.

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 82623889 - 2⁵ = 82623857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82623883) 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, 2187 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (10810584).

Almost surely, 2^82623889 is an apocalyptic number.

It is an amenable number.

82623889 is a deficient number, since it is larger than the sum of its proper divisors (3860783).

82623889 is a wasteful number, since it uses less digits than its factorization.

82623889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11207.

The product of its digits is 331776, while the sum is 46.

The square root of 82623889 is about 9089.7683688860. The cubic root of 82623889 is about 435.5471847529.

The spelling of 82623889 in words is "eighty-two million, six hundred twenty-three thousand, eight hundred eighty-nine".