101694987 has 16 divisors (see below), whose sum is σ = 151044000. Its totient is φ = 67623552.

The previous prime is 101694979. The next prime is 101695019. The reversal of 101694987 is 789496101.

It is a happy number.

It is not a de Polignac number, because 101694987 - 2³ = 101694979 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (101694287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6439 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (9440250).

Almost surely, 2^101694987 is an apocalyptic number.

101694987 is a deficient number, since it is larger than the sum of its proper divisors (49349013).

101694987 is an equidigital number, since it uses as much as digits as its factorization.

101694987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627 (or 9621 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 101694987 is about 10084.3932390600. The cubic root of 101694987 is about 466.7666820214.

The spelling of 101694987 in words is "one hundred one million, six hundred ninety-four thousand, nine hundred eighty-seven".