906479249 has 4 divisors (see below), whose sum is σ = 976208436. Its totient is φ = 836750064.

The previous prime is 906479237. The next prime is 906479257. The reversal of 906479249 is 942974609.

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 91776400 + 814702849 = 9580^2 + 28543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906479249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 906479197 and 906479206.

It is not an unprimeable number, because it can be changed into a prime (906479549) 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, 34864574 + ... + 34864599.

It is an arithmetic number, because the mean of its divisors is an integer number (244052109).

Almost surely, 2^906479249 is an apocalyptic number.

It is an amenable number.

906479249 is a deficient number, since it is larger than the sum of its proper divisors (69729187).

906479249 is a wasteful number, since it uses less digits than its factorization.

906479249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69729186.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 906479249 is about 30107.7938248554. The cubic root of 906479249 is about 967.8007527807.

The spelling of 906479249 in words is "nine hundred six million, four hundred seventy-nine thousand, two hundred forty-nine".