83457071 has 2 divisors, whose sum is σ = 83457072. Its totient is φ = 83457070.

The previous prime is 83457067. The next prime is 83457079. The reversal of 83457071 is 17075438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83457071 - 2² = 83457067 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83457079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41728535 + 41728536.

It is an arithmetic number, because the mean of its divisors is an integer number (41728536).

Almost surely, 2^83457071 is an apocalyptic number.

83457071 is a deficient number, since it is larger than the sum of its proper divisors (1).

83457071 is an equidigital number, since it uses as much as digits as its factorization.

83457071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 83457071 is about 9135.4841688878. The cubic root of 83457071 is about 437.0063150698.

The spelling of 83457071 in words is "eighty-three million, four hundred fifty-seven thousand, seventy-one".