78516232 has 16 divisors (see below), whose sum is σ = 147317760. Its totient is φ = 39231504.

The previous prime is 78516209. The next prime is 78516233. The reversal of 78516232 is 23261587.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78516233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15433 + ... + 19879.

It is an arithmetic number, because the mean of its divisors is an integer number (9207360).

Almost surely, 2^78516232 is an apocalyptic number.

It is an amenable number.

78516232 is a deficient number, since it is larger than the sum of its proper divisors (68801528).

78516232 is a wasteful number, since it uses less digits than its factorization.

78516232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660 (or 6656 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 78516232 is about 8860.9385507405. The cubic root of 78516232 is about 428.2063959257.

The spelling of 78516232 in words is "seventy-eight million, five hundred sixteen thousand, two hundred thirty-two".