78834152 has 16 divisors (see below), whose sum is σ = 148451940. Its totient is φ = 39246976.

The previous prime is 78834139. The next prime is 78834167. The reversal of 78834152 is 25143887.

It can be written as a sum of positive squares in 2 ways, for example, as 72352036 + 6482116 = 8506^2 + 2546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19283 + ... + 23010.

Almost surely, 2^78834152 is an apocalyptic number.

It is an amenable number.

78834152 is a deficient number, since it is larger than the sum of its proper divisors (69617788).

78834152 is a wasteful number, since it uses less digits than its factorization.

78834152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42532 (or 42528 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 78834152 is about 8878.8598367133. The cubic root of 78834152 is about 428.7835676529.

The spelling of 78834152 in words is "seventy-eight million, eight hundred thirty-four thousand, one hundred fifty-two".