82401874 has 8 divisors (see below), whose sum is σ = 123832908. Its totient is φ = 41124240.

The previous prime is 82401871. The next prime is 82401919. The reversal of 82401874 is 47810428.

It can be written as a sum of positive squares in 2 ways, for example, as 77316849 + 5085025 = 8793^2 + 2255^2 .

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

It is not an unprimeable number, because it can be changed into a prime (82401871) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 36997 + ... + 39160.

Almost surely, 2^82401874 is an apocalyptic number.

82401874 is a deficient number, since it is larger than the sum of its proper divisors (41431034).

82401874 is a wasteful number, since it uses less digits than its factorization.

82401874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76700.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 82401874 is about 9077.5477966244. The cubic root of 82401874 is about 435.1567216157.

It can be divided in two parts, 82 and 401874, that added together give a square (401956 = 634²).

The spelling of 82401874 in words is "eighty-two million, four hundred one thousand, eight hundred seventy-four".