82978093 has 8 divisors (see below), whose sum is σ = 91873440. Its totient is φ = 74308080.

The previous prime is 82978081. The next prime is 82978121. The reversal of 82978093 is 39087928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82978093 - 2²¹ = 80880941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82978033) 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 7 ways as a sum of consecutive naturals, for example, 55558 + ... + 57031.

It is an arithmetic number, because the mean of its divisors is an integer number (11484180).

Almost surely, 2^82978093 is an apocalyptic number.

It is an amenable number.

82978093 is a deficient number, since it is larger than the sum of its proper divisors (8895347).

82978093 is a wasteful number, since it uses less digits than its factorization.

82978093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112667.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 82978093 is about 9109.2311969782. The cubic root of 82978093 is about 436.1686863058.

The spelling of 82978093 in words is "eighty-two million, nine hundred seventy-eight thousand, ninety-three".