16612787 has 2 divisors, whose sum is σ = 16612788. Its totient is φ = 16612786.

The previous prime is 16612781. The next prime is 16612789. The reversal of 16612787 is 78721661.

It is a strong prime.

It is an emirp because it is prime and its reverse (78721661) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16612787 is a prime.

Together with 16612789, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1067969 and since 16612787 and 1067969 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16612787.

It is not a weakly prime, because it can be changed into another prime (16612781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306393 + 8306394.

It is an arithmetic number, because the mean of its divisors is an integer number (8306394).

Almost surely, 2^16612787 is an apocalyptic number.

16612787 is a deficient number, since it is larger than the sum of its proper divisors (1).

16612787 is an equidigital number, since it uses as much as digits as its factorization.

16612787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 38.

The square root of 16612787 is about 4075.8786782729. The cubic root of 16612787 is about 255.1609236707.

The spelling of 16612787 in words is "sixteen million, six hundred twelve thousand, seven hundred eighty-seven".