78353316 has 36 divisors (see below), whose sum is σ = 198499392. Its totient is φ = 26059824.

The previous prime is 78353311. The next prime is 78353329. The reversal of 78353316 is 61335387.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78353316² = 12278484256391712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (78353311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15945 + ... + 20271.

It is an arithmetic number, because the mean of its divisors is an integer number (5513872).

Almost surely, 2^78353316 is an apocalyptic number.

It is an amenable number.

78353316 is an abundant number, since it is smaller than the sum of its proper divisors (120146076).

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

78353316 is a wasteful number, since it uses less digits than its factorization.

78353316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840 (or 4835 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 78353316 is about 8851.7408457320. The cubic root of 78353316 is about 427.9100241759.

The spelling of 78353316 in words is "seventy-eight million, three hundred fifty-three thousand, three hundred sixteen".