78306792 has 32 divisors (see below), whose sum is σ = 196490400. Its totient is φ = 26005824.

The previous prime is 78306791. The next prime is 78306793. The reversal of 78306792 is 29760387.

It is an interprime number because it is at equal distance from previous prime (78306791) and next prime (78306793).

It is a super-2 number, since 2×78306792² = 12263907346662528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78306791) 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, 759 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (6140325).

Almost surely, 2^78306792 is an apocalyptic number.

It is an amenable number.

78306792 is an abundant number, since it is smaller than the sum of its proper divisors (118183608).

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

78306792 is a wasteful number, since it uses less digits than its factorization.

78306792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12065 (or 12061 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 78306792 is about 8849.1124978723. The cubic root of 78306792 is about 427.8253137532.

The spelling of 78306792 in words is "seventy-eight million, three hundred six thousand, seven hundred ninety-two".