78945932 has 12 divisors (see below), whose sum is σ = 148782816. Its totient is φ = 36436560.

The previous prime is 78945929. The next prime is 78945949. The reversal of 78945932 is 23954987.

It is a happy number.

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 in 3 ways as a sum of consecutive naturals, for example, 759044 + ... + 759147.

It is an arithmetic number, because the mean of its divisors is an integer number (12398568).

Almost surely, 2^78945932 is an apocalyptic number.

It is an amenable number.

78945932 is a deficient number, since it is larger than the sum of its proper divisors (69836884).

78945932 is a wasteful number, since it uses less digits than its factorization.

78945932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518208 (or 1518206 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 78945932 is about 8885.1523340908. The cubic root of 78945932 is about 428.9861312651.

The spelling of 78945932 in words is "seventy-eight million, nine hundred forty-five thousand, nine hundred thirty-two".