61287833 has 2 divisors, whose sum is σ = 61287834. Its totient is φ = 61287832.

The previous prime is 61287827. The next prime is 61287851. The reversal of 61287833 is 33878216.

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., 41822089 + 19465744 = 6467^2 + 4412^2 .

It is a cyclic number.

It is not a de Polignac number, because 61287833 - 2¹⁰ = 61286809 is a prime.

It is not a weakly prime, because it can be changed into another prime (61287823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30643916 + 30643917.

It is an arithmetic number, because the mean of its divisors is an integer number (30643917).

Almost surely, 2^61287833 is an apocalyptic number.

It is an amenable number.

61287833 is a deficient number, since it is larger than the sum of its proper divisors (1).

61287833 is an equidigital number, since it uses as much as digits as its factorization.

61287833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 61287833 is about 7828.6546098292. The cubic root of 61287833 is about 394.2679020906.

The spelling of 61287833 in words is "sixty-one million, two hundred eighty-seven thousand, eight hundred thirty-three".