61106879 has 2 divisors, whose sum is σ = 61106880. Its totient is φ = 61106878.

The previous prime is 61106861. The next prime is 61106911. The reversal of 61106879 is 97860116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61106879 - 2⁸ = 61106623 is a prime.

It is a super-2 number, since 2×61106879² = 7468101322241282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61106809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553439 + 30553440.

It is an arithmetic number, because the mean of its divisors is an integer number (30553440).

Almost surely, 2^61106879 is an apocalyptic number.

61106879 is a deficient number, since it is larger than the sum of its proper divisors (1).

61106879 is an equidigital number, since it uses as much as digits as its factorization.

61106879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 61106879 is about 7817.0889082829. The cubic root of 61106879 is about 393.8794906597.

The spelling of 61106879 in words is "sixty-one million, one hundred six thousand, eight hundred seventy-nine".