78432652 has 12 divisors (see below), whose sum is σ = 137319336. Its totient is φ = 39198560.

The previous prime is 78432643. The next prime is 78432659. The reversal of 78432652 is 25623487.

It is not an unprimeable number, because it can be changed into a prime (78432659) 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, 13968 + ... + 18760.

It is an arithmetic number, because the mean of its divisors is an integer number (11443278).

Almost surely, 2^78432652 is an apocalyptic number.

It is an amenable number.

78432652 is a deficient number, since it is larger than the sum of its proper divisors (58886684).

78432652 is a wasteful number, since it uses less digits than its factorization.

78432652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888 (or 8886 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 78432652 is about 8856.2210902845. The cubic root of 78432652 is about 428.0544010392.

It can be divided in two parts, 784326 and 52, that added together give a triangular number (784378 = T₁₂₅₂).

The spelling of 78432652 in words is "seventy-eight million, four hundred thirty-two thousand, six hundred fifty-two".