82379642 has 4 divisors (see below), whose sum is σ = 123569466. Its totient is φ = 41189820.

The previous prime is 82379639. The next prime is 82379651. The reversal of 82379642 is 24697328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 21242881 = 7819^2 + 4609^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82379642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20594909 + ... + 20594912.

Almost surely, 2^82379642 is an apocalyptic number.

82379642 is a deficient number, since it is larger than the sum of its proper divisors (41189824).

82379642 is a wasteful number, since it uses less digits than its factorization.

82379642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41189823.

The product of its digits is 145152, while the sum is 41.

The square root of 82379642 is about 9076.3231542294. The cubic root of 82379642 is about 435.1175830462.

The spelling of 82379642 in words is "eighty-two million, three hundred seventy-nine thousand, six hundred forty-two".