655734887 has 2 divisors, whose sum is σ = 655734888. Its totient is φ = 655734886.

The previous prime is 655734857. The next prime is 655734889. The reversal of 655734887 is 788437556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655734887 - 2¹² = 655730791 is a prime.

Together with 655734889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655734889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327867443 + 327867444.

It is an arithmetic number, because the mean of its divisors is an integer number (327867444).

Almost surely, 2^655734887 is an apocalyptic number.

655734887 is a deficient number, since it is larger than the sum of its proper divisors (1).

655734887 is an equidigital number, since it uses as much as digits as its factorization.

655734887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5644800, while the sum is 53.

The square root of 655734887 is about 25607.3209649116. The cubic root of 655734887 is about 868.7792307194.

The spelling of 655734887 in words is "six hundred fifty-five million, seven hundred thirty-four thousand, eight hundred eighty-seven".