49999866 has 16 divisors (see below), whose sum is σ = 114285504. Its totient is φ = 14285664.

The previous prime is 49999853. The next prime is 49999877. The reversal of 49999866 is 66899994.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595195 + ... + 595278.

It is an arithmetic number, because the mean of its divisors is an integer number (7142844).

Almost surely, 2^49999866 is an apocalyptic number.

49999866 is an abundant number, since it is smaller than the sum of its proper divisors (64285638).

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

49999866 is a wasteful number, since it uses less digits than its factorization.

49999866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190485.

The product of its digits is 7558272, while the sum is 60.

The square root of 49999866 is about 7071.0583366283. The cubic root of 49999866 is about 368.4028207569.

The spelling of 49999866 in words is "forty-nine million, nine hundred ninety-nine thousand, eight hundred sixty-six".