83680004 has 12 divisors (see below), whose sum is σ = 149203404. Its totient is φ = 41050464.

The previous prime is 83679997. The next prime is 83680007. The reversal of 83680004 is 40008638.

It can be written as a sum of positive squares in 2 ways, for example, as 37847104 + 45832900 = 6152^2 + 6770^2 .

It is not an unprimeable number, because it can be changed into a prime (83680007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197147 + ... + 197570.

It is an arithmetic number, because the mean of its divisors is an integer number (12433617).

Almost surely, 2^83680004 is an apocalyptic number.

It is an amenable number.

83680004 is a deficient number, since it is larger than the sum of its proper divisors (65523400).

83680004 is a wasteful number, since it uses less digits than its factorization.

83680004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394774 (or 394772 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83680004 is about 9147.6775194581. The cubic root of 83680004 is about 437.3950838490.

The spelling of 83680004 in words is "eighty-three million, six hundred eighty thousand, four".