479162909 has 2 divisors, whose sum is σ = 479162910. Its totient is φ = 479162908.

The previous prime is 479162891. The next prime is 479162921. The reversal of 479162909 is 909261974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363664900 + 115498009 = 19070^2 + 10747^2 .

It is a cyclic number.

It is not a de Polignac number, because 479162909 - 2¹⁶ = 479097373 is a prime.

It is a super-2 number, since 2×479162909² = 459194186722684562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479162989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239581454 + 239581455.

It is an arithmetic number, because the mean of its divisors is an integer number (239581455).

Almost surely, 2^479162909 is an apocalyptic number.

It is an amenable number.

479162909 is a deficient number, since it is larger than the sum of its proper divisors (1).

479162909 is an equidigital number, since it uses as much as digits as its factorization.

479162909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 479162909 is about 21889.7900629494. The cubic root of 479162909 is about 782.5181105479.

The spelling of 479162909 in words is "four hundred seventy-nine million, one hundred sixty-two thousand, nine hundred nine".