82061428 has 6 divisors (see below), whose sum is σ = 143607506. Its totient is φ = 41030712.

The previous prime is 82061423. The next prime is 82061429. The reversal of 82061428 is 82416028.

It can be written as a sum of positive squares in only one way, i.e., 45724644 + 36336784 = 6762^2 + 6028^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82061428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82061423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257675 + ... + 10257682.

Almost surely, 2^82061428 is an apocalyptic number.

It is an amenable number.

82061428 is a deficient number, since it is larger than the sum of its proper divisors (61546078).

82061428 is a wasteful number, since it uses less digits than its factorization.

82061428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515361 (or 20515359 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 82061428 is about 9058.7762970503. The cubic root of 82061428 is about 434.5566063802.

The spelling of 82061428 in words is "eighty-two million, sixty-one thousand, four hundred twenty-eight".