47599661 has 2 divisors, whose sum is σ = 47599662. Its totient is φ = 47599660.

The previous prime is 47599637. The next prime is 47599679. The reversal of 47599661 is 16699574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 2910436 = 6685^2 + 1706^2 .

It is a cyclic number.

It is not a de Polignac number, because 47599661 - 2⁶ = 47599597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47599621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23799830 + 23799831.

It is an arithmetic number, because the mean of its divisors is an integer number (23799831).

Almost surely, 2^47599661 is an apocalyptic number.

It is an amenable number.

47599661 is a deficient number, since it is larger than the sum of its proper divisors (1).

47599661 is an equidigital number, since it uses as much as digits as its factorization.

47599661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 47599661 is about 6899.2507564228. The cubic root of 47599661 is about 362.4109295232.

The spelling of 47599661 in words is "forty-seven million, five hundred ninety-nine thousand, six hundred sixty-one".