83274779 has 8 divisors (see below), whose sum is σ = 96096000. Its totient is φ = 70684776.

The previous prime is 83274767. The next prime is 83274817. The reversal of 83274779 is 97747238.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83274779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83274179) 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, 57029 + ... + 58470.

It is an arithmetic number, because the mean of its divisors is an integer number (12012000).

Almost surely, 2^83274779 is an apocalyptic number.

83274779 is a deficient number, since it is larger than the sum of its proper divisors (12821221).

83274779 is a wasteful number, since it uses less digits than its factorization.

83274779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115609.

The product of its digits is 592704, while the sum is 47.

The square root of 83274779 is about 9125.5015752560. The cubic root of 83274779 is about 436.6879045540.

The spelling of 83274779 in words is "eighty-three million, two hundred seventy-four thousand, seven hundred seventy-nine".