61043866 has 8 divisors (see below), whose sum is σ = 98609364. Its totient is φ = 28174080.

The previous prime is 61043839. The next prime is 61043881. The reversal of 61043866 is 66834016.

It can be written as a sum of positive squares in 2 ways, for example, as 59985025 + 1058841 = 7745^2 + 1029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173895 + ... + 1173946.

Almost surely, 2^61043866 is an apocalyptic number.

61043866 is a deficient number, since it is larger than the sum of its proper divisors (37565498).

61043866 is a wasteful number, since it uses less digits than its factorization.

61043866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347856.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 61043866 is about 7813.0574041152. The cubic root of 61043866 is about 393.7440554742.

The spelling of 61043866 in words is "sixty-one million, forty-three thousand, eight hundred sixty-six".