61069859 has 2 divisors, whose sum is σ = 61069860. Its totient is φ = 61069858.

The previous prime is 61069843. The next prime is 61069861. The reversal of 61069859 is 95896016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61069859 - 2⁴ = 61069843 is a prime.

Together with 61069861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61069259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30534929 + 30534930.

It is an arithmetic number, because the mean of its divisors is an integer number (30534930).

Almost surely, 2^61069859 is an apocalyptic number.

61069859 is a deficient number, since it is larger than the sum of its proper divisors (1).

61069859 is an equidigital number, since it uses as much as digits as its factorization.

61069859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 61069859 is about 7814.7206603947. The cubic root of 61069859 is about 393.7999340721.

The spelling of 61069859 in words is "sixty-one million, sixty-nine thousand, eight hundred fifty-nine".