78284093 has 4 divisors (see below), whose sum is σ = 79949760. Its totient is φ = 76618428.

The previous prime is 78284053. The next prime is 78284113. The reversal of 78284093 is 39048287.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78284093 - 2¹⁶ = 78218557 is a prime.

It is a super-2 number, since 2×78284093² = 12256798433665298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78284093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78284053) 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 3 ways as a sum of consecutive naturals, for example, 832763 + ... + 832856.

It is an arithmetic number, because the mean of its divisors is an integer number (19987440).

Almost surely, 2^78284093 is an apocalyptic number.

It is an amenable number.

78284093 is a deficient number, since it is larger than the sum of its proper divisors (1665667).

78284093 is a wasteful number, since it uses less digits than its factorization.

78284093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665666.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 78284093 is about 8847.8298469173. The cubic root of 78284093 is about 427.7839714676.

The spelling of 78284093 in words is "seventy-eight million, two hundred eighty-four thousand, ninety-three".