850405772 has 24 divisors (see below), whose sum is σ = 1553961696. Its totient is φ = 406441728.

The previous prime is 850405747. The next prime is 850405783. The reversal of 850405772 is 277504058.

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, 222308 + ... + 226100.

It is an arithmetic number, because the mean of its divisors is an integer number (64748404).

Almost surely, 2^850405772 is an apocalyptic number.

It is an amenable number.

850405772 is a deficient number, since it is larger than the sum of its proper divisors (703555924).

850405772 is a wasteful number, since it uses less digits than its factorization.

850405772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257 (or 6255 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 850405772 is about 29161.7175763020. The cubic root of 850405772 is about 947.4189484719.

The spelling of 850405772 in words is "eight hundred fifty million, four hundred five thousand, seven hundred seventy-two".