61407966 has 24 divisors (see below), whose sum is σ = 123913944. Its totient is φ = 20287840.

The previous prime is 61407949. The next prime is 61407989. The reversal of 61407966 is 66970416.

61407966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132976 + ... + 133436.

It is an arithmetic number, because the mean of its divisors is an integer number (5163081).

Almost surely, 2^61407966 is an apocalyptic number.

61407966 is an abundant number, since it is smaller than the sum of its proper divisors (62505978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61407966 is a wasteful number, since it uses less digits than its factorization.

61407966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 61407966 is about 7836.3235002136. The cubic root of 61407966 is about 394.5253412923.

The spelling of 61407966 in words is "sixty-one million, four hundred seven thousand, nine hundred sixty-six".