82354979 has 8 divisors (see below), whose sum is σ = 94256640. Its totient is φ = 70487496.

The previous prime is 82354969. The next prime is 82354997. The reversal of 82354979 is 97945328.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82354979 - 2²⁴ = 65577763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82354969) 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, 3149 + ... + 13214.

It is an arithmetic number, because the mean of its divisors is an integer number (11782080).

Almost surely, 2^82354979 is an apocalyptic number.

82354979 is a deficient number, since it is larger than the sum of its proper divisors (11901661).

82354979 is a wasteful number, since it uses less digits than its factorization.

82354979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089.

The product of its digits is 544320, while the sum is 47.

The square root of 82354979 is about 9074.9644076437. The cubic root of 82354979 is about 435.0741565564.

The spelling of 82354979 in words is "eighty-two million, three hundred fifty-four thousand, nine hundred seventy-nine".