909477461 has 2 divisors, whose sum is σ = 909477462. Its totient is φ = 909477460.

The previous prime is 909477451. The next prime is 909477463. The reversal of 909477461 is 164774909.

It is a happy number.

909477461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 579364900 + 330112561 = 24070^2 + 18169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-909477461 is a prime.

Together with 909477463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909477463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454738730 + 454738731.

It is an arithmetic number, because the mean of its divisors is an integer number (454738731).

Almost surely, 2^909477461 is an apocalyptic number.

It is an amenable number.

909477461 is a deficient number, since it is larger than the sum of its proper divisors (1).

909477461 is an equidigital number, since it uses as much as digits as its factorization.

909477461 is an odious number, because the sum of its binary digits is odd.

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

The square root of 909477461 is about 30157.5440147237. The cubic root of 909477461 is about 968.8665902216.

The spelling of 909477461 in words is "nine hundred nine million, four hundred seventy-seven thousand, four hundred sixty-one".