83641402 has 8 divisors (see below), whose sum is σ = 135113076. Its totient is φ = 38603712.

The previous prime is 83641387. The next prime is 83641403. The reversal of 83641402 is 20414638.

It can be written as a sum of positive squares in 2 ways, for example, as 83557881 + 83521 = 9141^2 + 289^2 .

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 (83641403) 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, 1608463 + ... + 1608514.

Almost surely, 2^83641402 is an apocalyptic number.

83641402 is a deficient number, since it is larger than the sum of its proper divisors (51471674).

83641402 is a wasteful number, since it uses less digits than its factorization.

83641402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216992.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 83641402 is about 9145.5673416142. The cubic root of 83641402 is about 437.3278159987.

The spelling of 83641402 in words is "eighty-three million, six hundred forty-one thousand, four hundred two".