117426587 has 2 divisors, whose sum is σ = 117426588. Its totient is φ = 117426586.

The previous prime is 117426541. The next prime is 117426601. The reversal of 117426587 is 785624711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117426587 - 2¹² = 117422491 is a prime.

It is not a weakly prime, because it can be changed into another prime (117426787) 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, 58713293 + 58713294.

It is an arithmetic number, because the mean of its divisors is an integer number (58713294).

Almost surely, 2^117426587 is an apocalyptic number.

117426587 is a deficient number, since it is larger than the sum of its proper divisors (1).

117426587 is an equidigital number, since it uses as much as digits as its factorization.

117426587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 41.

The square root of 117426587 is about 10836.3548760642. The cubic root of 117426587 is about 489.6910269289.

The spelling of 117426587 in words is "one hundred seventeen million, four hundred twenty-six thousand, five hundred eighty-seven".