83681950 has 48 divisors (see below), whose sum is σ = 170788176. Its totient is φ = 30252800.

The previous prime is 83681933. The next prime is 83681957. The reversal of 83681950 is 5918638.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83681957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127824 + ... + 128476.

It is an arithmetic number, because the mean of its divisors is an integer number (3558087).

Almost surely, 2^83681950 is an apocalyptic number.

83681950 is an abundant number, since it is smaller than the sum of its proper divisors (87106226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83681950 is a wasteful number, since it uses less digits than its factorization.

83681950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 83681950 is about 9147.7838846357. The cubic root of 83681950 is about 437.3984744011.

The spelling of 83681950 in words is "eighty-three million, six hundred eighty-one thousand, nine hundred fifty".