49666 has 8 divisors (see below), whose sum is σ = 78480. Its totient is φ = 23508.
The previous prime is 49663. The next prime is 49667. The reversal of 49666 is 66694.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 12.
It is not an unprimeable number, because it can be changed into a prime (49663) 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, 616 + ... + 691.
It is an arithmetic number, because the mean of its divisors is an integer number (9810).
249666 is an apocalyptic number.
49666 is a deficient number, since it is larger than the sum of its proper divisors (28814).
49666 is a wasteful number, since it uses less digits than its factorization.
49666 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1328.
The product of its digits is 7776, while the sum is 31.
The square root of 49666 is about 222.8586996283. The cubic root of 49666 is about 36.7581005482.
The spelling of 49666 in words is "forty-nine thousand, six hundred sixty-six".
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