906838049 has 4 divisors (see below), whose sum is σ = 976594836. Its totient is φ = 837081264.

The previous prime is 906838019. The next prime is 906838081. The reversal of 906838049 is 940838609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 532686400 + 374151649 = 23080^2 + 19343^2 .

It is a cyclic number.

It is not a de Polignac number, because 906838049 - 2¹⁶ = 906772513 is a prime.

It is a super-2 number, since 2×906838049² = 1644710494228252802, which contains 22 as substring.

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 = 906837994 and 906838012.

It is not an unprimeable number, because it can be changed into a prime (906838019) 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, 34878374 + ... + 34878399.

It is an arithmetic number, because the mean of its divisors is an integer number (244148709).

Almost surely, 2^906838049 is an apocalyptic number.

It is an amenable number.

906838049 is a deficient number, since it is larger than the sum of its proper divisors (69756787).

906838049 is a wasteful number, since it uses less digits than its factorization.

906838049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69756786.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 906838049 is about 30113.7518253704. The cubic root of 906838049 is about 967.9284266372.

The spelling of 906838049 in words is "nine hundred six million, eight hundred thirty-eight thousand, forty-nine".