836840445 has 64 divisors (see below), whose sum is σ = 1562609664. Its totient is φ = 374549760.

The previous prime is 836840393. The next prime is 836840461. The reversal of 836840445 is 544048638.

It is not a de Polignac number, because 836840445 - 2⁸ = 836840189 is a prime.

It is a super-3 number, since 3×836840445³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 836840397 and 836840406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1141299 + ... + 1142031.

It is an arithmetic number, because the mean of its divisors is an integer number (24415776).

Almost surely, 2^836840445 is an apocalyptic number.

It is an amenable number.

836840445 is a deficient number, since it is larger than the sum of its proper divisors (725769219).

836840445 is a wasteful number, since it uses less digits than its factorization.

836840445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 836840445 is about 28928.1946377578. The cubic root of 836840445 is about 942.3543086395.

The spelling of 836840445 in words is "eight hundred thirty-six million, eight hundred forty thousand, four hundred forty-five".