61333669 has 2 divisors, whose sum is σ = 61333670. Its totient is φ = 61333668.

The previous prime is 61333621. The next prime is 61333673. The reversal of 61333669 is 96633316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 5008644 = 7505^2 + 2238^2 .

It is a cyclic number.

It is not a de Polignac number, because 61333669 - 2⁷ = 61333541 is a prime.

It is a super-2 number, since 2×61333669² = 7523637906003122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61333619) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666834 + 30666835.

It is an arithmetic number, because the mean of its divisors is an integer number (30666835).

Almost surely, 2^61333669 is an apocalyptic number.

It is an amenable number.

61333669 is a deficient number, since it is larger than the sum of its proper divisors (1).

61333669 is an equidigital number, since it uses as much as digits as its factorization.

61333669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 37.

The square root of 61333669 is about 7831.5815133343. The cubic root of 61333669 is about 394.3661660766.

The spelling of 61333669 in words is "sixty-one million, three hundred thirty-three thousand, six hundred sixty-nine".