99731003 has 2 divisors, whose sum is σ = 99731004. Its totient is φ = 99731002.

The previous prime is 99730987. The next prime is 99731033. The reversal of 99731003 is 30013799.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30013799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99731003 - 2⁴ = 99730987 is a prime.

It is not a weakly prime, because it can be changed into another prime (99731033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49865501 + 49865502.

It is an arithmetic number, because the mean of its divisors is an integer number (49865502).

Almost surely, 2^99731003 is an apocalyptic number.

99731003 is a deficient number, since it is larger than the sum of its proper divisors (1).

99731003 is an equidigital number, since it uses as much as digits as its factorization.

99731003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 99731003 is about 9986.5410928910. The cubic root of 99731003 is about 463.7423184649.

The spelling of 99731003 in words is "ninety-nine million, seven hundred thirty-one thousand, three".