78023616 has 56 divisors (see below), whose sum is σ = 225210624. Its totient is φ = 23642880.

The previous prime is 78023609. The next prime is 78023669. The reversal of 78023616 is 61632087.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16360 + ... + 20583.

Almost surely, 2^78023616 is an apocalyptic number.

It is an amenable number.

78023616 is an abundant number, since it is smaller than the sum of its proper divisors (147187008).

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

78023616 is a wasteful number, since it uses less digits than its factorization.

78023616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36969 (or 36959 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 78023616 is about 8833.0977578650. The cubic root of 78023616 is about 427.3089848047.

The spelling of 78023616 in words is "seventy-eight million, twenty-three thousand, six hundred sixteen".