83752740 has 36 divisors (see below), whose sum is σ = 254050524. Its totient is φ = 22334016.

The previous prime is 83752733. The next prime is 83752763. The reversal of 83752740 is 4725738.

It can be written as a sum of positive squares in 2 ways, for example, as 65707236 + 18045504 = 8106^2 + 4248^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 83752695 and 83752704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232467 + ... + 232826.

It is an arithmetic number, because the mean of its divisors is an integer number (7056959).

Almost surely, 2^83752740 is an apocalyptic number.

It is an amenable number.

83752740 is an abundant number, since it is smaller than the sum of its proper divisors (170297784).

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

83752740 is a wasteful number, since it uses less digits than its factorization.

83752740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465308 (or 465303 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 83752740 is about 9151.6523098291. The cubic root of 83752740 is about 437.5217774194.

The spelling of 83752740 in words is "eighty-three million, seven hundred fifty-two thousand, seven hundred forty".