78992276 has 12 divisors (see below), whose sum is σ = 150803520. Its totient is φ = 35905560.

The previous prime is 78992273. The next prime is 78992293. The reversal of 78992276 is 67229987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78992273) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 897596 + ... + 897683.

It is an arithmetic number, because the mean of its divisors is an integer number (12566960).

Almost surely, 2^78992276 is an apocalyptic number.

It is an amenable number.

78992276 is a deficient number, since it is larger than the sum of its proper divisors (71811244).

78992276 is a wasteful number, since it uses less digits than its factorization.

78992276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795294 (or 1795292 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 78992276 is about 8887.7598977470. The cubic root of 78992276 is about 429.0700580901.

The spelling of 78992276 in words is "seventy-eight million, nine hundred ninety-two thousand, two hundred seventy-six".