78746323 has 4 divisors (see below), whose sum is σ = 80874640. Its totient is φ = 76618008.

The previous prime is 78746321. The next prime is 78746347. The reversal of 78746323 is 32364787.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78746323 - 2¹ = 78746321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78746321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064103 + ... + 1064176.

It is an arithmetic number, because the mean of its divisors is an integer number (20218660).

Almost surely, 2^78746323 is an apocalyptic number.

78746323 is a deficient number, since it is larger than the sum of its proper divisors (2128317).

78746323 is a wasteful number, since it uses less digits than its factorization.

78746323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128316.

The product of its digits is 169344, while the sum is 40.

The square root of 78746323 is about 8873.9124967514. The cubic root of 78746323 is about 428.6242727908.

The spelling of 78746323 in words is "seventy-eight million, seven hundred forty-six thousand, three hundred twenty-three".