78715093 has 8 divisors (see below), whose sum is σ = 79377408. Its totient is φ = 78055824.

The previous prime is 78715037. The next prime is 78715103. The reversal of 78715093 is 39051787.

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 78715093 - 2²¹ = 76617941 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 (78715003) 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, 90780 + ... + 91642.

It is an arithmetic number, because the mean of its divisors is an integer number (9922176).

Almost surely, 2^78715093 is an apocalyptic number.

It is an amenable number.

78715093 is a deficient number, since it is larger than the sum of its proper divisors (662315).

78715093 is a wasteful number, since it uses less digits than its factorization.

78715093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 78715093 is about 8872.1526700119. The cubic root of 78715093 is about 428.5676026061.

The spelling of 78715093 in words is "seventy-eight million, seven hundred fifteen thousand, ninety-three".