835505538 has 16 divisors (see below), whose sum is σ = 1909727040. Its totient is φ = 238715856.

The previous prime is 835505537. The next prime is 835505569.

835505538 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 19892989 = 835505538 / (8 + 3 + 5 + 5 + 0 + 5 + 5 + 3 + 8).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 835505538.

It is not an unprimeable number, because it can be changed into a prime (835505537) 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, 9946453 + ... + 9946536.

It is an arithmetic number, because the mean of its divisors is an integer number (119357940).

Almost surely, 2^835505538 is an apocalyptic number.

835505538 is an abundant number, since it is smaller than the sum of its proper divisors (1074221502).

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

835505538 is a wasteful number, since it uses less digits than its factorization.

835505538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19893001.

The product of its (nonzero) digits is 360000, while the sum is 42.

The square root of 835505538 is about 28905.1126619496. The cubic root of 835505538 is about 941.8529686089.

It can be divided in two parts, 83 and 5505538, that multiplied together give a palindrome (456959654).

The spelling of 835505538 in words is "eight hundred thirty-five million, five hundred five thousand, five hundred thirty-eight".