83626261 has 2 divisors, whose sum is σ = 83626262. Its totient is φ = 83626260.

The previous prime is 83626223. The next prime is 83626379. The reversal of 83626261 is 16262638.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83356900 + 269361 = 9130^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 83626261 - 2⁷ = 83626133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83626211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41813130 + 41813131.

It is an arithmetic number, because the mean of its divisors is an integer number (41813131).

Almost surely, 2^83626261 is an apocalyptic number.

It is an amenable number.

83626261 is a deficient number, since it is larger than the sum of its proper divisors (1).

83626261 is an equidigital number, since it uses as much as digits as its factorization.

83626261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 83626261 is about 9144.7395260882. The cubic root of 83626261 is about 437.3014256390.

Adding to 83626261 its reverse (16262638), we get a palindrome (99888899).

The spelling of 83626261 in words is "eighty-three million, six hundred twenty-six thousand, two hundred sixty-one".