117028787 has 2 divisors, whose sum is σ = 117028788. Its totient is φ = 117028786.

The previous prime is 117028781. The next prime is 117028837. The reversal of 117028787 is 787820711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117028787 - 2¹⁶ = 116963251 is a prime.

It is not a weakly prime, because it can be changed into another prime (117028781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58514393 + 58514394.

It is an arithmetic number, because the mean of its divisors is an integer number (58514394).

Almost surely, 2^117028787 is an apocalyptic number.

117028787 is a deficient number, since it is larger than the sum of its proper divisors (1).

117028787 is an equidigital number, since it uses as much as digits as its factorization.

117028787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43904, while the sum is 41.

The square root of 117028787 is about 10817.9844240968. The cubic root of 117028787 is about 489.1374343093.

The spelling of 117028787 in words is "one hundred seventeen million, twenty-eight thousand, seven hundred eighty-seven".