850008629 has 4 divisors (see below), whose sum is σ = 850137900. Its totient is φ = 849879360.

The previous prime is 850008613. The next prime is 850008641. The reversal of 850008629 is 926800058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 926800058 = 2 ⋅463400029.

It can be written as a sum of positive squares in 2 ways, for example, as 533702404 + 316306225 = 23102^2 + 17785^2 .

It is a cyclic number.

It is not a de Polignac number, because 850008629 - 2⁴ = 850008613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 850008592 and 850008601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850008689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54212 + ... + 68109.

It is an arithmetic number, because the mean of its divisors is an integer number (212534475).

Almost surely, 2^850008629 is an apocalyptic number.

It is an amenable number.

850008629 is a deficient number, since it is larger than the sum of its proper divisors (129271).

850008629 is a wasteful number, since it uses less digits than its factorization.

850008629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129270.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 850008629 is about 29154.9074599800. The cubic root of 850008629 is about 947.2714426565.

The spelling of 850008629 in words is "eight hundred fifty million, eight thousand, six hundred twenty-nine".