61726433 has 2 divisors, whose sum is σ = 61726434. Its totient is φ = 61726432.

The previous prime is 61726429. The next prime is 61726447. The reversal of 61726433 is 33462716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61105489 + 620944 = 7817^2 + 788^2 .

It is a cyclic number.

It is not a de Polignac number, because 61726433 - 2² = 61726429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61726433.

It is not a weakly prime, because it can be changed into another prime (61726333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30863216 + 30863217.

It is an arithmetic number, because the mean of its divisors is an integer number (30863217).

Almost surely, 2^61726433 is an apocalyptic number.

It is an amenable number.

61726433 is a deficient number, since it is larger than the sum of its proper divisors (1).

61726433 is an equidigital number, since it uses as much as digits as its factorization.

61726433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 61726433 is about 7856.6171473478. The cubic root of 61726433 is about 395.2061798147.

The spelling of 61726433 in words is "sixty-one million, seven hundred twenty-six thousand, four hundred thirty-three".