83775061 has 8 divisors (see below), whose sum is σ = 84412440. Its totient is φ = 83140608.

The previous prime is 83775059. The next prime is 83775071. The reversal of 83775061 is 16057738.

It can be written as a sum of positive squares in 4 ways, for example, as 56160036 + 27615025 = 7494^2 + 5255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83775061 - 2¹ = 83775059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83775061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83775001) 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, 104715 + ... + 105511.

It is an arithmetic number, because the mean of its divisors is an integer number (10551555).

Almost surely, 2^83775061 is an apocalyptic number.

It is an amenable number.

83775061 is a deficient number, since it is larger than the sum of its proper divisors (637379).

83775061 is a wasteful number, since it uses less digits than its factorization.

83775061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 83775061 is about 9152.8717351441. The cubic root of 83775061 is about 437.5606420430.

The spelling of 83775061 in words is "eighty-three million, seven hundred seventy-five thousand, sixty-one".