83641604 has 6 divisors (see below), whose sum is σ = 146372814. Its totient is φ = 41820800.

The previous prime is 83641603. The next prime is 83641609. The reversal of 83641604 is 40614638.

It can be written as a sum of positive squares in only one way, i.e., 56100100 + 27541504 = 7490^2 + 5248^2 .

It is not an unprimeable number, because it can be changed into a prime (83641601) 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, 10455197 + ... + 10455204.

It is an arithmetic number, because the mean of its divisors is an integer number (24395469).

Almost surely, 2^83641604 is an apocalyptic number.

It is an amenable number.

83641604 is a deficient number, since it is larger than the sum of its proper divisors (62731210).

83641604 is a wasteful number, since it uses less digits than its factorization.

83641604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910405 (or 20910403 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 83641604 is about 9145.5783852089. The cubic root of 83641604 is about 437.3281680578.

The spelling of 83641604 in words is "eighty-three million, six hundred forty-one thousand, six hundred four".