4642787 has 2 divisors, whose sum is σ = 4642788. Its totient is φ = 4642786.

The previous prime is 4642741. The next prime is 4642789. The reversal of 4642787 is 7872464.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4642787 - 2⁸ = 4642531 is a prime.

It is a super-2 number, since 2×4642787² = 43110942254738, which contains 22 as substring.

Together with 4642789, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4642787.

It is not a weakly prime, because it can be changed into another prime (4642789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321393 + 2321394.

It is an arithmetic number, because the mean of its divisors is an integer number (2321394).

Almost surely, 2^4642787 is an apocalyptic number.

4642787 is a deficient number, since it is larger than the sum of its proper divisors (1).

4642787 is an equidigital number, since it uses as much as digits as its factorization.

4642787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 4642787 is about 2154.7127418754. The cubic root of 4642787 is about 166.8244057743.

The spelling of 4642787 in words is "four million, six hundred forty-two thousand, seven hundred eighty-seven".