96661861 has 2 divisors, whose sum is σ = 96661862. Its totient is φ = 96661860.

The previous prime is 96661841. The next prime is 96661879. The reversal of 96661861 is 16816669.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 32421636 = 8015^2 + 5694^2 .

It is a cyclic number.

It is not a de Polignac number, because 96661861 - 2¹⁷ = 96530789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (96661811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48330930 + 48330931.

It is an arithmetic number, because the mean of its divisors is an integer number (48330931).

Almost surely, 2^96661861 is an apocalyptic number.

It is an amenable number.

96661861 is a deficient number, since it is larger than the sum of its proper divisors (1).

96661861 is an equidigital number, since it uses as much as digits as its factorization.

96661861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 43.

The square root of 96661861 is about 9831.6764084260. The cubic root of 96661861 is about 458.9355681238.

The spelling of 96661861 in words is "ninety-six million, six hundred sixty-one thousand, eight hundred sixty-one".