850499405 has 16 divisors (see below), whose sum is σ = 1217113344. Its totient is φ = 557842560.

The previous prime is 850499399. The next prime is 850499411. The reversal of 850499405 is 504994058.

It is an interprime number because it is at equal distance from previous prime (850499399) and next prime (850499411).

It is not a de Polignac number, because 850499405 - 2¹⁶ = 850433869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527456 + ... + 529065.

It is an arithmetic number, because the mean of its divisors is an integer number (76069584).

Almost surely, 2^850499405 is an apocalyptic number.

It is an amenable number.

850499405 is a deficient number, since it is larger than the sum of its proper divisors (366613939).

850499405 is a wasteful number, since it uses less digits than its factorization.

850499405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056556.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 850499405 is about 29163.3229416677. The cubic root of 850499405 is about 947.4537187058.

The spelling of 850499405 in words is "eight hundred fifty million, four hundred ninety-nine thousand, four hundred five".