83427620 has 24 divisors (see below), whose sum is σ = 179472888. Its totient is φ = 32556800.

The previous prime is 83427587. The next prime is 83427623. The reversal of 83427620 is 2672438.

It can be written as a sum of positive squares in 4 ways, for example, as 8916196 + 74511424 = 2986^2 + 8632^2 .

It is not an unprimeable number, because it can be changed into a prime (83427623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50051 + ... + 51690.

It is an arithmetic number, because the mean of its divisors is an integer number (7478037).

Almost surely, 2^83427620 is an apocalyptic number.

It is an amenable number.

83427620 is an abundant number, since it is smaller than the sum of its proper divisors (96045268).

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

83427620 is a wasteful number, since it uses less digits than its factorization.

83427620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101791 (or 101789 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 83427620 is about 9133.8721252271. The cubic root of 83427620 is about 436.9549042585.

The spelling of 83427620 in words is "eighty-three million, four hundred twenty-seven thousand, six hundred twenty".