83686004 has 6 divisors (see below), whose sum is σ = 146450514. Its totient is φ = 41843000.

The previous prime is 83685997. The next prime is 83686021. The reversal of 83686004 is 40068638.

It can be written as a sum of positive squares in only one way, i.e., 83685904 + 100 = 9148^2 + 10^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10460747 + ... + 10460754.

It is an arithmetic number, because the mean of its divisors is an integer number (24408419).

Almost surely, 2^83686004 is an apocalyptic number.

It is an amenable number.

83686004 is a deficient number, since it is larger than the sum of its proper divisors (62764510).

83686004 is a wasteful number, since it uses less digits than its factorization.

83686004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921505 (or 20921503 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 83686004 is about 9148.0054656739. The cubic root of 83686004 is about 437.4055375921.

The spelling of 83686004 in words is "eighty-three million, six hundred eighty-six thousand, four".