78671332 has 6 divisors (see below), whose sum is σ = 137674838. Its totient is φ = 39335664.

The previous prime is 78671323. The next prime is 78671353. The reversal of 78671332 is 23317687.

It can be written as a sum of positive squares in only one way, i.e., 52620516 + 26050816 = 7254^2 + 5104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78671291 and 78671300.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9833913 + ... + 9833920.

Almost surely, 2^78671332 is an apocalyptic number.

It is an amenable number.

78671332 is a deficient number, since it is larger than the sum of its proper divisors (59003506).

78671332 is a wasteful number, since it uses less digits than its factorization.

78671332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667837 (or 19667835 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 78671332 is about 8869.6861274794. The cubic root of 78671332 is about 428.4881683549.

It can be divided in two parts, 78671 and 332, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 78671332 in words is "seventy-eight million, six hundred seventy-one thousand, three hundred thirty-two".