78012415 has 8 divisors (see below), whose sum is σ = 100816128. Its totient is φ = 57609120.

The previous prime is 78012383. The next prime is 78012443. The reversal of 78012415 is 51421087.

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

It is not a de Polignac number, because 78012415 - 2⁵ = 78012383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600031 + ... + 600160.

It is an arithmetic number, because the mean of its divisors is an integer number (12602016).

Almost surely, 2^78012415 is an apocalyptic number.

78012415 is a deficient number, since it is larger than the sum of its proper divisors (22803713).

78012415 is a wasteful number, since it uses less digits than its factorization.

78012415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200209.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 78012415 is about 8832.4636993310. The cubic root of 78012415 is about 427.2885357952.

The spelling of 78012415 in words is "seventy-eight million, twelve thousand, four hundred fifteen".