82648779 has 8 divisors (see below), whose sum is σ = 110240832. Its totient is φ = 55077960.

The previous prime is 82648771. The next prime is 82648799. The reversal of 82648779 is 97784628.

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

It is not a de Polignac number, because 82648779 - 2³ = 82648771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82648771) 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, 10524 + ... + 16614.

It is an arithmetic number, because the mean of its divisors is an integer number (13780104).

Almost surely, 2^82648779 is an apocalyptic number.

82648779 is a deficient number, since it is larger than the sum of its proper divisors (27592053).

82648779 is a wasteful number, since it uses less digits than its factorization.

82648779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617.

The product of its digits is 1354752, while the sum is 51.

The square root of 82648779 is about 9091.1373875880. The cubic root of 82648779 is about 435.5909157738.

The spelling of 82648779 in words is "eighty-two million, six hundred forty-eight thousand, seven hundred seventy-nine".