78310328 has 32 divisors (see below), whose sum is σ = 151139520. Its totient is φ = 38016000.

The previous prime is 78310321. The next prime is 78310357. The reversal of 78310328 is 82301387.

It is a super-2 number, since 2×78310328² = 12265014942935168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78310294 and 78310303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78310321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88448 + ... + 89328.

It is an arithmetic number, because the mean of its divisors is an integer number (4723110).

Almost surely, 2^78310328 is an apocalyptic number.

It is an amenable number.

78310328 is a deficient number, since it is larger than the sum of its proper divisors (72829192).

78310328 is a wasteful number, since it uses less digits than its factorization.

78310328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 78310328 is about 8849.3122896641. The cubic root of 78310328 is about 427.8317532438.

It can be divided in two parts, 783 and 10328, that added together give a palindrome (11111).

The spelling of 78310328 in words is "seventy-eight million, three hundred ten thousand, three hundred twenty-eight".