855065906 has 8 divisors (see below), whose sum is σ = 1313881884. Its totient is φ = 417105280.

The previous prime is 855065903. The next prime is 855065969. The reversal of 855065906 is 609560558.

It can be written as a sum of positive squares in 2 ways, for example, as 709742881 + 145323025 = 26641^2 + 12055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×855065906² = 1462275407207201672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855065903) 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, 5213735 + ... + 5213898.

Almost surely, 2^855065906 is an apocalyptic number.

855065906 is a deficient number, since it is larger than the sum of its proper divisors (458815978).

855065906 is a wasteful number, since it uses less digits than its factorization.

855065906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10427676.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 855065906 is about 29241.5099815314. The cubic root of 855065906 is about 949.1463822462.

The spelling of 855065906 in words is "eight hundred fifty-five million, sixty-five thousand, nine hundred six".