82600661 has 8 divisors (see below), whose sum is σ = 97041504. Its totient is φ = 69315120.

The previous prime is 82600643. The next prime is 82600663. The reversal of 82600661 is 16600628.

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 82600661 - 2¹⁴ = 82584277 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 (82600663) 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, 288671 + ... + 288956.

It is an arithmetic number, because the mean of its divisors is an integer number (12130188).

Almost surely, 2^82600661 is an apocalyptic number.

It is an amenable number.

82600661 is a deficient number, since it is larger than the sum of its proper divisors (14440843).

82600661 is a wasteful number, since it uses less digits than its factorization.

82600661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577651.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 82600661 is about 9088.4905787485. The cubic root of 82600661 is about 435.5063658956.

The spelling of 82600661 in words is "eighty-two million, six hundred thousand, six hundred sixty-one".