850723540 has 24 divisors (see below), whose sum is σ = 1864195200. Its totient is φ = 325494048.

The previous prime is 850723513. The next prime is 850723543. The reversal of 850723540 is 45327058.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 850723496 and 850723505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850723543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 924240 + ... + 925159.

It is an arithmetic number, because the mean of its divisors is an integer number (77674800).

Almost surely, 2^850723540 is an apocalyptic number.

It is an amenable number.

850723540 is an abundant number, since it is smaller than the sum of its proper divisors (1013471660).

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

850723540 is a wasteful number, since it uses less digits than its factorization.

850723540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849431 (or 1849429 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 850723540 is about 29167.1654433543. The cubic root of 850723540 is about 947.5369399623.

The spelling of 850723540 in words is "eight hundred fifty million, seven hundred twenty-three thousand, five hundred forty".