78932830 has 32 divisors (see below), whose sum is σ = 145566720. Its totient is φ = 30807840.

The previous prime is 78932827. The next prime is 78932837. The reversal of 78932830 is 3823987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78932837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75451 + ... + 76489.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 2^78932830 is an apocalyptic number.

78932830 is a deficient number, since it is larger than the sum of its proper divisors (66633890).

78932830 is a wasteful number, since it uses less digits than its factorization.

78932830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 78932830 is about 8884.4150060654. The cubic root of 78932830 is about 428.9623981982.

The spelling of 78932830 in words is "seventy-eight million, nine hundred thirty-two thousand, eight hundred thirty".