117390587 has 2 divisors, whose sum is σ = 117390588. Its totient is φ = 117390586.

The previous prime is 117390577. The next prime is 117390613. The reversal of 117390587 is 785093711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117390587 - 2⁶ = 117390523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117390557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58695293 + 58695294.

It is an arithmetic number, because the mean of its divisors is an integer number (58695294).

Almost surely, 2^117390587 is an apocalyptic number.

117390587 is a deficient number, since it is larger than the sum of its proper divisors (1).

117390587 is an equidigital number, since it uses as much as digits as its factorization.

117390587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 117390587 is about 10834.6936735655. The cubic root of 117390587 is about 489.6409795497.

It can be divided in two parts, 117390 and 587, that multiplied together give a triangular number (68907930 = T₁₁₇₃₉).

The spelling of 117390587 in words is "one hundred seventeen million, three hundred ninety thousand, five hundred eighty-seven".