906811838 has 4 divisors (see below), whose sum is σ = 1360217760. Its totient is φ = 453405918.

The previous prime is 906811813. The next prime is 906811889. The reversal of 906811838 is 838118609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838118609 = 617 ⋅1358377.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226702958 + ... + 226702961.

It is an arithmetic number, because the mean of its divisors is an integer number (340054440).

Almost surely, 2^906811838 is an apocalyptic number.

906811838 is a deficient number, since it is larger than the sum of its proper divisors (453405922).

906811838 is a wasteful number, since it uses less digits than its factorization.

906811838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453405921.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 906811838 is about 30113.3166223849. The cubic root of 906811838 is about 967.9191009675.

The spelling of 906811838 in words is "nine hundred six million, eight hundred eleven thousand, eight hundred thirty-eight".