82620519 has 12 divisors (see below), whose sum is σ = 113224104. Its totient is φ = 53589024.

The previous prime is 82620511. The next prime is 82620529. The reversal of 82620519 is 91502628.

It is not a de Polignac number, because 82620519 - 2³ = 82620511 is a prime.

It is a super-2 number, since 2×82620519² = 13652300319658722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82620519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82620511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5952 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (9435342).

Almost surely, 2^82620519 is an apocalyptic number.

82620519 is a deficient number, since it is larger than the sum of its proper divisors (30603585).

82620519 is a wasteful number, since it uses less digits than its factorization.

82620519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20194 (or 20157 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 82620519 is about 9089.5829937352. The cubic root of 82620519 is about 435.5412630839.

The spelling of 82620519 in words is "eighty-two million, six hundred twenty thousand, five hundred nineteen".