78069415 has 8 divisors (see below), whose sum is σ = 93830688. Its totient is φ = 62357280.

The previous prime is 78069413. The next prime is 78069437. The reversal of 78069415 is 51496087.

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

It is not a de Polignac number, because 78069415 - 2¹ = 78069413 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 (78069413) 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, 8691 + ... + 15220.

It is an arithmetic number, because the mean of its divisors is an integer number (11728836).

Almost surely, 2^78069415 is an apocalyptic number.

78069415 is a deficient number, since it is larger than the sum of its proper divisors (15761273).

78069415 is a wasteful number, since it uses less digits than its factorization.

78069415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24569.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 78069415 is about 8835.6898429042. The cubic root of 78069415 is about 427.3925770009.

The spelling of 78069415 in words is "seventy-eight million, sixty-nine thousand, four hundred fifteen".