61888943 has 2 divisors, whose sum is σ = 61888944. Its totient is φ = 61888942.

The previous prime is 61888933. The next prime is 61888951. The reversal of 61888943 is 34988816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61888943 - 2¹⁰ = 61887919 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61888933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30944471 + 30944472.

It is an arithmetic number, because the mean of its divisors is an integer number (30944472).

Almost surely, 2^61888943 is an apocalyptic number.

61888943 is a deficient number, since it is larger than the sum of its proper divisors (1).

61888943 is an equidigital number, since it uses as much as digits as its factorization.

61888943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 47.

The square root of 61888943 is about 7866.9525866119. The cubic root of 61888943 is about 395.5527016789.

The spelling of 61888943 in words is "sixty-one million, eight hundred eighty-eight thousand, nine hundred forty-three".