94171487 has 2 divisors, whose sum is σ = 94171488. Its totient is φ = 94171486.

The previous prime is 94171477. The next prime is 94171501. The reversal of 94171487 is 78417149.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94171487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94171477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47085743 + 47085744.

It is an arithmetic number, because the mean of its divisors is an integer number (47085744).

Almost surely, 2^94171487 is an apocalyptic number.

94171487 is a deficient number, since it is larger than the sum of its proper divisors (1).

94171487 is an equidigital number, since it uses as much as digits as its factorization.

94171487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 41.

The square root of 94171487 is about 9704.1994517837. The cubic root of 94171487 is about 454.9599240152.

The spelling of 94171487 in words is "ninety-four million, one hundred seventy-one thousand, four hundred eighty-seven".