78419116 has 6 divisors (see below), whose sum is σ = 137233460. Its totient is φ = 39209556.

The previous prime is 78419111. The next prime is 78419141. The reversal of 78419116 is 61191487.

It is a super-2 number, since 2×78419116² = 12299115508442912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78419111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9802386 + ... + 9802393.

Almost surely, 2^78419116 is an apocalyptic number.

It is an amenable number.

78419116 is a deficient number, since it is larger than the sum of its proper divisors (58814344).

78419116 is a wasteful number, since it uses less digits than its factorization.

78419116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19604783 (or 19604781 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 78419116 is about 8855.4568487459. The cubic root of 78419116 is about 428.0297749106.

It can be divided in two parts, 784 and 19116, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 78419116 in words is "seventy-eight million, four hundred nineteen thousand, one hundred sixteen".