99730331 has 2 divisors, whose sum is σ = 99730332. Its totient is φ = 99730330.

The previous prime is 99730307. The next prime is 99730339. The reversal of 99730331 is 13303799.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13303799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99730331 - 2²⁶ = 32621467 is a prime.

It is a super-2 number, since 2×99730331² = 19892277842739122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99730291 and 99730300.

It is not a weakly prime, because it can be changed into another prime (99730339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49865165 + 49865166.

It is an arithmetic number, because the mean of its divisors is an integer number (49865166).

Almost surely, 2^99730331 is an apocalyptic number.

99730331 is a deficient number, since it is larger than the sum of its proper divisors (1).

99730331 is an equidigital number, since it uses as much as digits as its factorization.

99730331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 99730331 is about 9986.5074475514. The cubic root of 99730331 is about 463.7412768779.

The spelling of 99730331 in words is "ninety-nine million, seven hundred thirty thousand, three hundred thirty-one".