79220678 has 16 divisors (see below), whose sum is σ = 121214016. Its totient is φ = 38823720.

The previous prime is 79220677. The next prime is 79220681. The reversal of 79220678 is 87602297.

It is a super-3 number, since 3×79220678³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79220677) 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, 19925 + ... + 23567.

It is an arithmetic number, because the mean of its divisors is an integer number (7575876).

Almost surely, 2^79220678 is an apocalyptic number.

79220678 is a deficient number, since it is larger than the sum of its proper divisors (41993338).

79220678 is a wasteful number, since it uses less digits than its factorization.

79220678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 79220678 is about 8900.5998674247. The cubic root of 79220678 is about 429.4832046297.

The spelling of 79220678 in words is "seventy-nine million, two hundred twenty thousand, six hundred seventy-eight".