61470866 has 8 divisors (see below), whose sum is σ = 92300364. Its totient is φ = 30704080.

The previous prime is 61470853. The next prime is 61470869. The reversal of 61470866 is 66807416.

It can be written as a sum of positive squares in 2 ways, for example, as 44422225 + 17048641 = 6665^2 + 4129^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61470869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13145 + ... + 17196.

Almost surely, 2^61470866 is an apocalyptic number.

61470866 is a deficient number, since it is larger than the sum of its proper divisors (30829498).

61470866 is a wasteful number, since it uses less digits than its factorization.

61470866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31356.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 61470866 is about 7840.3358346438. The cubic root of 61470866 is about 394.6599990440.

The spelling of 61470866 in words is "sixty-one million, four hundred seventy thousand, eight hundred sixty-six".