82609797 has 8 divisors (see below), whose sum is σ = 110315680. Its totient is φ = 54988560.

The previous prime is 82609771. The next prime is 82609801. The reversal of 82609797 is 79790628.

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

It is not a de Polignac number, because 82609797 - 2⁶ = 82609733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82609717) 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, 18847 + ... + 22812.

It is an arithmetic number, because the mean of its divisors is an integer number (13789460).

Almost surely, 2^82609797 is an apocalyptic number.

It is an amenable number.

82609797 is a deficient number, since it is larger than the sum of its proper divisors (27705883).

82609797 is a wasteful number, since it uses less digits than its factorization.

82609797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42323.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 82609797 is about 9088.9931785649. The cubic root of 82609797 is about 435.5224216165.

The spelling of 82609797 in words is "eighty-two million, six hundred nine thousand, seven hundred ninety-seven".