78326892 has 216 divisors, whose sum is σ = 255391920. Its totient is φ = 20684160.

The previous prime is 78326881. The next prime is 78326971. The reversal of 78326892 is 29862387.

It is a super-2 number, since 2×78326892² = 12270204020759328, which contains 22 as substring.

Its product of digits (290304) is a multiple of the sum of its prime divisors (72).

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 71 ways as a sum of consecutive naturals, for example, 1910392 + ... + 1910432.

It is an arithmetic number, because the mean of its divisors is an integer number (1182370).

Almost surely, 2^78326892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78326892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127695960).

78326892 is an abundant number, since it is smaller than the sum of its proper divisors (177065028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78326892 is a wasteful number, since it uses less digits than its factorization.

78326892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 72 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 78326892 is about 8850.2481321147. The cubic root of 78326892 is about 427.8619157428.

The spelling of 78326892 in words is "seventy-eight million, three hundred twenty-six thousand, eight hundred ninety-two".