850400079 has 8 divisors (see below), whose sum is σ = 1134034560. Its totient is φ = 566849496.

The previous prime is 850400069. The next prime is 850400101. The reversal of 850400079 is 970004058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 850400079 - 2¹² = 850395983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850400009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8662 + ... + 42140.

It is an arithmetic number, because the mean of its divisors is an integer number (141754320).

Almost surely, 2^850400079 is an apocalyptic number.

850400079 is a deficient number, since it is larger than the sum of its proper divisors (283634481).

850400079 is a wasteful number, since it uses less digits than its factorization.

850400079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41949.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 850400079 is about 29161.6199652900. The cubic root of 850400079 is about 947.4168343172.

The spelling of 850400079 in words is "eight hundred fifty million, four hundred thousand, seventy-nine".