99940271 has 2 divisors, whose sum is σ = 99940272. Its totient is φ = 99940270.

The previous prime is 99940259. The next prime is 99940303. The reversal of 99940271 is 17204999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99940271 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 (99940201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49970135 + 49970136.

It is an arithmetic number, because the mean of its divisors is an integer number (49970136).

Almost surely, 2^99940271 is an apocalyptic number.

99940271 is a deficient number, since it is larger than the sum of its proper divisors (1).

99940271 is an equidigital number, since it uses as much as digits as its factorization.

99940271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 99940271 is about 9997.0131039226. The cubic root of 99940271 is about 464.0664524697.

The spelling of 99940271 in words is "ninety-nine million, nine hundred forty thousand, two hundred seventy-one".