78465315 has 8 divisors (see below), whose sum is σ = 125544528. Its totient is φ = 41848160.

The previous prime is 78465301. The next prime is 78465323. The reversal of 78465315 is 51356487.

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

It is not a de Polignac number, because 78465315 - 2¹² = 78461219 is a prime.

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, 2615496 + ... + 2615525.

It is an arithmetic number, because the mean of its divisors is an integer number (15693066).

Almost surely, 2^78465315 is an apocalyptic number.

78465315 is a deficient number, since it is larger than the sum of its proper divisors (47079213).

78465315 is a wasteful number, since it uses less digits than its factorization.

78465315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231029.

The product of its digits is 100800, while the sum is 39.

The square root of 78465315 is about 8858.0649692808. The cubic root of 78465315 is about 428.1138133721.

The spelling of 78465315 in words is "seventy-eight million, four hundred sixty-five thousand, three hundred fifteen".