479490617 has 4 divisors (see below), whose sum is σ = 481273380. Its totient is φ = 477707856.

The previous prime is 479490587. The next prime is 479490623. The reversal of 479490617 is 716094974.

It is a happy number.

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 225120016 + 254370601 = 15004^2 + 15949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479490617 is a prime.

It is a super-2 number, since 2×479490617² = 459822503582081378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479490667) 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, 890978 + ... + 891515.

It is an arithmetic number, because the mean of its divisors is an integer number (120318345).

Almost surely, 2^479490617 is an apocalyptic number.

It is an amenable number.

479490617 is a deficient number, since it is larger than the sum of its proper divisors (1782763).

479490617 is a wasteful number, since it uses less digits than its factorization.

479490617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782762.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 479490617 is about 21897.2741910951. The cubic root of 479490617 is about 782.6964625598.

The spelling of 479490617 in words is "four hundred seventy-nine million, four hundred ninety thousand, six hundred seventeen".