472526917 has 4 divisors (see below), whose sum is σ = 500322636. Its totient is φ = 444731200.

The previous prime is 472526891. The next prime is 472526921. The reversal of 472526917 is 719625274.

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 438023041 + 34503876 = 20929^2 + 5874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472526917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472526987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13897834 + ... + 13897867.

It is an arithmetic number, because the mean of its divisors is an integer number (125080659).

Almost surely, 2^472526917 is an apocalyptic number.

It is an amenable number.

472526917 is a deficient number, since it is larger than the sum of its proper divisors (27795719).

472526917 is a wasteful number, since it uses less digits than its factorization.

472526917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27795718.

The product of its digits is 211680, while the sum is 43.

The square root of 472526917 is about 21737.6842602886. The cubic root of 472526917 is about 778.8889050882. Note that the first 3 decimals are identical.

The spelling of 472526917 in words is "four hundred seventy-two million, five hundred twenty-six thousand, nine hundred seventeen".