1003471661 has 2 divisors, whose sum is σ = 1003471662. Its totient is φ = 1003471660.

The previous prime is 1003471591. The next prime is 1003471691. The reversal of 1003471661 is 1661743001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979314436 + 24157225 = 31294^2 + 4915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003471661 - 2¹⁸ = 1003209517 is a prime.

It is a super-3 number, since 3×1003471661³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003471691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501735830 + 501735831.

It is an arithmetic number, because the mean of its divisors is an integer number (501735831).

Almost surely, 2^1003471661 is an apocalyptic number.

It is an amenable number.

1003471661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003471661 is an equidigital number, since it uses as much as digits as its factorization.

1003471661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1003471661 is about 31677.6208229090. The cubic root of 1003471661 is about 1001.1558837513.

The spelling of 1003471661 in words is "one billion, three million, four hundred seventy-one thousand, six hundred sixty-one".