83340646 has 4 divisors (see below), whose sum is σ = 125010972. Its totient is φ = 41670322.

The previous prime is 83340629. The next prime is 83340671. The reversal of 83340646 is 64604338.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64604338 = 2 ⋅32302169.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20835160 + ... + 20835163.

It is an arithmetic number, because the mean of its divisors is an integer number (31252743).

Almost surely, 2^83340646 is an apocalyptic number.

83340646 is a deficient number, since it is larger than the sum of its proper divisors (41670326).

83340646 is a wasteful number, since it uses less digits than its factorization.

83340646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41670325.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 83340646 is about 9129.1098142152. The cubic root of 83340646 is about 436.8030083999.

The spelling of 83340646 in words is "eighty-three million, three hundred forty thousand, six hundred forty-six".