83945650 has 24 divisors (see below), whose sum is σ = 156569220. Its totient is φ = 33485760.

The previous prime is 83945647. The next prime is 83945663. The reversal of 83945650 is 5654938.

It can be written as a sum of positive squares in 6 ways, for example, as 66145689 + 17799961 = 8133^2 + 4219^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17736 + ... + 21964.

Almost surely, 2^83945650 is an apocalyptic number.

83945650 is a deficient number, since it is larger than the sum of its proper divisors (72623570).

83945650 is a wasteful number, since it uses less digits than its factorization.

83945650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 83945650 is about 9162.1858745607. The cubic root of 83945650 is about 437.8574385046.

The spelling of 83945650 in words is "eighty-three million, nine hundred forty-five thousand, six hundred fifty".