487948811 has 6 divisors (see below), whose sum is σ = 567613980. Its totient is φ = 418241796.

The previous prime is 487948789. The next prime is 487948829. The reversal of 487948811 is 118849784.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-487948811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487948811.

It is not an unprimeable number, because it can be changed into a prime (487948411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4979021 + ... + 4979118.

It is an arithmetic number, because the mean of its divisors is an integer number (94602330).

Almost surely, 2^487948811 is an apocalyptic number.

487948811 is a deficient number, since it is larger than the sum of its proper divisors (79665169).

487948811 is an equidigital number, since it uses as much as digits as its factorization.

487948811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9958153 (or 9958146 counting only the distinct ones).

The product of its digits is 516096, while the sum is 50.

The square root of 487948811 is about 22089.5633954137. The cubic root of 487948811 is about 787.2719076040.

The spelling of 487948811 in words is "four hundred eighty-seven million, nine hundred forty-eight thousand, eight hundred eleven".