83917069 has 2 divisors, whose sum is σ = 83917070. Its totient is φ = 83917068.

The previous prime is 83917061. The next prime is 83917079. The reversal of 83917069 is 96071938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58293225 + 25623844 = 7635^2 + 5062^2 .

It is a cyclic number.

It is not a de Polignac number, because 83917069 - 2³ = 83917061 is a prime.

It is a super-2 number, since 2×83917069² = 14084148939101522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83917061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41958534 + 41958535.

It is an arithmetic number, because the mean of its divisors is an integer number (41958535).

Almost surely, 2^83917069 is an apocalyptic number.

It is an amenable number.

83917069 is a deficient number, since it is larger than the sum of its proper divisors (1).

83917069 is an equidigital number, since it uses as much as digits as its factorization.

83917069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 83917069 is about 9160.6260157262. The cubic root of 83917069 is about 437.8077403806.

The spelling of 83917069 in words is "eighty-three million, nine hundred seventeen thousand, sixty-nine".