83608964 has 6 divisors (see below), whose sum is σ = 146315694. Its totient is φ = 41804480.

The previous prime is 83608957. The next prime is 83608969. The reversal of 83608964 is 46980638.

It can be written as a sum of positive squares in only one way, i.e., 81144064 + 2464900 = 9008^2 + 1570^2 .

It is a super-2 number, since 2×83608964² = 13980917722306592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83608969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10451117 + ... + 10451124.

It is an arithmetic number, because the mean of its divisors is an integer number (24385949).

Almost surely, 2^83608964 is an apocalyptic number.

It is an amenable number.

83608964 is a deficient number, since it is larger than the sum of its proper divisors (62706730).

83608964 is a wasteful number, since it uses less digits than its factorization.

83608964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20902245 (or 20902243 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 83608964 is about 9143.7937422057. The cubic root of 83608964 is about 437.2712735303.

The spelling of 83608964 in words is "eighty-three million, six hundred eight thousand, nine hundred sixty-four".