78336284 has 24 divisors (see below), whose sum is σ = 147879648. Its totient is φ = 36095040.

The previous prime is 78336283. The next prime is 78336299. The reversal of 78336284 is 48263387.

It is a super-2 number, since 2×78336284² = 12273146781857312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78336283) 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, 51089 + ... + 52599.

It is an arithmetic number, because the mean of its divisors is an integer number (6161652).

Almost surely, 2^78336284 is an apocalyptic number.

It is an amenable number.

78336284 is a deficient number, since it is larger than the sum of its proper divisors (69543364).

78336284 is a wasteful number, since it uses less digits than its factorization.

78336284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525 (or 2523 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 78336284 is about 8850.7787228017. The cubic root of 78336284 is about 427.8790163766.

The spelling of 78336284 in words is "seventy-eight million, three hundred thirty-six thousand, two hundred eighty-four".