78414512 has 20 divisors (see below), whose sum is σ = 165740136. Its totient is φ = 35642880.

The previous prime is 78414473. The next prime is 78414527. The reversal of 78414512 is 21541487.

It is a happy number.

It is a super-2 number, since 2×78414512² = 12297671384396288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222593 + ... + 222944.

Almost surely, 2^78414512 is an apocalyptic number.

It is an amenable number.

78414512 is an abundant number, since it is smaller than the sum of its proper divisors (87325624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78414512 is a wasteful number, since it uses less digits than its factorization.

78414512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445556 (or 445550 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 78414512 is about 8855.1968922210. The cubic root of 78414512 is about 428.0213981790.

Adding to 78414512 its reverse (21541487), we get a palindrome (99955999).

The spelling of 78414512 in words is "seventy-eight million, four hundred fourteen thousand, five hundred twelve".