82620655 has 8 divisors (see below), whose sum is σ = 106771392. Its totient is φ = 61012128.

The previous prime is 82620653. The next prime is 82620719. The reversal of 82620655 is 55602628.

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 82620655 - 2¹ = 82620653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82620655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82620653) 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, 635479 + ... + 635608.

It is an arithmetic number, because the mean of its divisors is an integer number (13346424).

Almost surely, 2^82620655 is an apocalyptic number.

82620655 is a deficient number, since it is larger than the sum of its proper divisors (24150737).

82620655 is a wasteful number, since it uses less digits than its factorization.

82620655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271105.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 82620655 is about 9089.5904748234. The cubic root of 82620655 is about 435.5415020624.

The spelling of 82620655 in words is "eighty-two million, six hundred twenty thousand, six hundred fifty-five".