46688489 has 2 divisors, whose sum is σ = 46688490. Its totient is φ = 46688488.

The previous prime is 46688483. The next prime is 46688507. The reversal of 46688489 is 98488664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31416025 + 15272464 = 5605^2 + 3908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46688489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 46688489.

It is not a weakly prime, because it can be changed into another prime (46688483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23344244 + 23344245.

It is an arithmetic number, because the mean of its divisors is an integer number (23344245).

Almost surely, 2^46688489 is an apocalyptic number.

It is an amenable number.

46688489 is a deficient number, since it is larger than the sum of its proper divisors (1).

46688489 is an equidigital number, since it uses as much as digits as its factorization.

46688489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 53.

The square root of 46688489 is about 6832.8975552104. The cubic root of 46688489 is about 360.0835428541.

The spelling of 46688489 in words is "forty-six million, six hundred eighty-eight thousand, four hundred eighty-nine".