82077619 has 8 divisors (see below), whose sum is σ = 88764480. Its totient is φ = 75444096.

The previous prime is 82077599. The next prime is 82077629. The reversal of 82077619 is 91677028.

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

It is not a de Polignac number, because 82077619 - 2²⁵ = 48523187 is a prime.

It is a super-2 number, since 2×82077619² = 13473471081418322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82077629) 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, 10102 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (11095560).

Almost surely, 2^82077619 is an apocalyptic number.

82077619 is a deficient number, since it is larger than the sum of its proper divisors (6686861).

82077619 is a wasteful number, since it uses less digits than its factorization.

82077619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26669.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 82077619 is about 9059.6699167243. The cubic root of 82077619 is about 434.5851843350.

The spelling of 82077619 in words is "eighty-two million, seventy-seven thousand, six hundred nineteen".