78029916 has 24 divisors (see below), whose sum is σ = 183840384. Its totient is φ = 25757040.

The previous prime is 78029911. The next prime is 78029947. The reversal of 78029916 is 61992087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78029911) 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, 30330 + ... + 32801.

It is an arithmetic number, because the mean of its divisors is an integer number (7660016).

Almost surely, 2^78029916 is an apocalyptic number.

It is an amenable number.

78029916 is an abundant number, since it is smaller than the sum of its proper divisors (105810468).

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

78029916 is a wasteful number, since it uses less digits than its factorization.

78029916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63241 (or 63239 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 78029916 is about 8833.4543639507. The cubic root of 78029916 is about 427.3204854857.

The spelling of 78029916 in words is "seventy-eight million, twenty-nine thousand, nine hundred sixteen".