94009987 has 2 divisors, whose sum is σ = 94009988. Its totient is φ = 94009986.

The previous prime is 94009973. The next prime is 94009991. The reversal of 94009987 is 78990049.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94009987 - 2¹¹ = 94007939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94009787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47004993 + 47004994.

It is an arithmetic number, because the mean of its divisors is an integer number (47004994).

Almost surely, 2^94009987 is an apocalyptic number.

94009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

94009987 is an equidigital number, since it uses as much as digits as its factorization.

94009987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 94009987 is about 9695.8747413526. The cubic root of 94009987 is about 454.6996963785.

The spelling of 94009987 in words is "ninety-four million, nine thousand, nine hundred eighty-seven".