82750069 has 2 divisors, whose sum is σ = 82750070. Its totient is φ = 82750068.

The previous prime is 82750043. The next prime is 82750117. The reversal of 82750069 is 96005728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 2289169 = 8970^2 + 1513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82750069 is a prime.

It is a super-2 number, since 2×82750069² = 13695147839009522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82750009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41375034 + 41375035.

It is an arithmetic number, because the mean of its divisors is an integer number (41375035).

Almost surely, 2^82750069 is an apocalyptic number.

It is an amenable number.

82750069 is a deficient number, since it is larger than the sum of its proper divisors (1).

82750069 is an equidigital number, since it uses as much as digits as its factorization.

82750069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 82750069 is about 9096.7064919123. The cubic root of 82750069 is about 435.7687889076.

The spelling of 82750069 in words is "eighty-two million, seven hundred fifty thousand, sixty-nine".