906941878 has 4 divisors (see below), whose sum is σ = 1360412820. Its totient is φ = 453470938.

The previous prime is 906941873. The next prime is 906941881. The reversal of 906941878 is 878149609.

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: 878149609 = 29 ⋅30281021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906941873) by changing a digit.

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, 226735468 + ... + 226735471.

It is an arithmetic number, because the mean of its divisors is an integer number (340103205).

Almost surely, 2^906941878 is an apocalyptic number.

906941878 is a deficient number, since it is larger than the sum of its proper divisors (453470942).

906941878 is a wasteful number, since it uses less digits than its factorization.

906941878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453470941.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 906941878 is about 30115.4757226247. The cubic root of 906941878 is about 967.9653664213.

The spelling of 906941878 in words is "nine hundred six million, nine hundred forty-one thousand, eight hundred seventy-eight".