78591245 has 8 divisors (see below), whose sum is σ = 95908320. Its totient is φ = 61807120.

The previous prime is 78591211. The next prime is 78591257. The reversal of 78591245 is 54219587.

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

It is not a de Polignac number, because 78591245 - 2¹⁶ = 78525709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132911 + ... + 133500.

It is an arithmetic number, because the mean of its divisors is an integer number (11988540).

Almost surely, 2^78591245 is an apocalyptic number.

It is an amenable number.

78591245 is a deficient number, since it is larger than the sum of its proper divisors (17317075).

78591245 is a wasteful number, since it uses less digits than its factorization.

78591245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266475.

The product of its digits is 100800, while the sum is 41.

The square root of 78591245 is about 8865.1703311330. The cubic root of 78591245 is about 428.3427194250.

The spelling of 78591245 in words is "seventy-eight million, five hundred ninety-one thousand, two hundred forty-five".