623213034887 has 2 divisors, whose sum is σ = 623213034888. Its totient is φ = 623213034886.

The previous prime is 623213034859. The next prime is 623213034889. The reversal of 623213034887 is 788430312326.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623213034887 is a prime.

Together with 623213034889, 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 (623213034889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311606517443 + 311606517444.

It is an arithmetic number, because the mean of its divisors is an integer number (311606517444).

Almost surely, 2^623213034887 is an apocalyptic number.

623213034887 is a deficient number, since it is larger than the sum of its proper divisors (1).

623213034887 is an equidigital number, since it uses as much as digits as its factorization.

623213034887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 623213034887 in words is "six hundred twenty-three billion, two hundred thirteen million, thirty-four thousand, eight hundred eighty-seven".