61847843 has 2 divisors, whose sum is σ = 61847844. Its totient is φ = 61847842.

The previous prime is 61847827. The next prime is 61847867. The reversal of 61847843 is 34874816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61847843 - 2⁴ = 61847827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61847843.

It is not a weakly prime, because it can be changed into another prime (61847893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30923921 + 30923922.

It is an arithmetic number, because the mean of its divisors is an integer number (30923922).

Almost surely, 2^61847843 is an apocalyptic number.

61847843 is a deficient number, since it is larger than the sum of its proper divisors (1).

61847843 is an equidigital number, since it uses as much as digits as its factorization.

61847843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 61847843 is about 7864.3399595897. The cubic root of 61847843 is about 395.4651210582.

The spelling of 61847843 in words is "sixty-one million, eight hundred forty-seven thousand, eight hundred forty-three".