83879057 has 2 divisors, whose sum is σ = 83879058. Its totient is φ = 83879056.

The previous prime is 83879027. The next prime is 83879063. The reversal of 83879057 is 75097838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72863296 + 11015761 = 8536^2 + 3319^2 .

It is a cyclic number.

It is not a de Polignac number, because 83879057 - 2¹² = 83874961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83879017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41939528 + 41939529.

It is an arithmetic number, because the mean of its divisors is an integer number (41939529).

Almost surely, 2^83879057 is an apocalyptic number.

It is an amenable number.

83879057 is a deficient number, since it is larger than the sum of its proper divisors (1).

83879057 is an equidigital number, since it uses as much as digits as its factorization.

83879057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 83879057 is about 9158.5510316862. The cubic root of 83879057 is about 437.7416256579.

The spelling of 83879057 in words is "eighty-three million, eight hundred seventy-nine thousand, fifty-seven".