61436866 has 8 divisors (see below), whose sum is σ = 92344464. Its totient is φ = 30655380.

The previous prime is 61436863. The next prime is 61436867. The reversal of 61436866 is 66863416.

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 (61436863) 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, 30300 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (11543058).

Almost surely, 2^61436866 is an apocalyptic number.

61436866 is a deficient number, since it is larger than the sum of its proper divisors (30907598).

61436866 is a wasteful number, since it uses less digits than its factorization.

61436866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63056.

The product of its digits is 124416, while the sum is 40.

The square root of 61436866 is about 7838.1672602720. The cubic root of 61436866 is about 394.5872224831.

The spelling of 61436866 in words is "sixty-one million, four hundred thirty-six thousand, eight hundred sixty-six".