47353661 has 2 divisors, whose sum is σ = 47353662. Its totient is φ = 47353660.

The previous prime is 47353651. The next prime is 47353679. The reversal of 47353661 is 16635374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44809636 + 2544025 = 6694^2 + 1595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47353661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47353651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23676830 + 23676831.

It is an arithmetic number, because the mean of its divisors is an integer number (23676831).

Almost surely, 2^47353661 is an apocalyptic number.

It is an amenable number.

47353661 is a deficient number, since it is larger than the sum of its proper divisors (1).

47353661 is an equidigital number, since it uses as much as digits as its factorization.

47353661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 47353661 is about 6881.3996396082. The cubic root of 47353661 is about 361.7855251021.

The spelling of 47353661 in words is "forty-seven million, three hundred fifty-three thousand, six hundred sixty-one".