78566097 has 8 divisors (see below), whose sum is σ = 105422656. Its totient is φ = 52043472.

The previous prime is 78566077. The next prime is 78566099. The reversal of 78566097 is 79066587.

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

It is not a de Polignac number, because 78566097 - 2¹⁰ = 78565073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78566099) 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, 82933 + ... + 83874.

It is an arithmetic number, because the mean of its divisors is an integer number (13177832).

Almost surely, 2^78566097 is an apocalyptic number.

It is an amenable number.

78566097 is a deficient number, since it is larger than the sum of its proper divisors (26856559).

78566097 is a wasteful number, since it uses less digits than its factorization.

78566097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166967.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 78566097 is about 8863.7518579888. The cubic root of 78566097 is about 428.2970268382.

The spelling of 78566097 in words is "seventy-eight million, five hundred sixty-six thousand, ninety-seven".