77976006 has 8 divisors (see below), whose sum is σ = 155952024. Its totient is φ = 25992000.

The previous prime is 77976001. The next prime is 77976011. The reversal of 77976006 is 60067977.

It is an interprime number because it is at equal distance from previous prime (77976001) and next prime (77976011).

It is a sphenic number, since it is the product of 3 distinct primes.

77976006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77976001) 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, 6497995 + ... + 6498006.

It is an arithmetic number, because the mean of its divisors is an integer number (19494003).

Almost surely, 2^77976006 is an apocalyptic number.

77976006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77976006 is a wasteful number, since it uses less digits than its factorization.

77976006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12996006.

The product of its (nonzero) digits is 111132, while the sum is 42.

The square root of 77976006 is about 8830.4023690883. The cubic root of 77976006 is about 427.2220524919. Note that the first 3 decimals are identical.

It can be divided in two parts, 7797600 and 6, that multiplied together give a square (46785600 = 6840²).

The spelling of 77976006 in words is "seventy-seven million, nine hundred seventy-six thousand, six".