99269381 has 4 divisors (see below), whose sum is σ = 99740064. Its totient is φ = 98798700.

The previous prime is 99269377. The next prime is 99269393. The reversal of 99269381 is 18396299.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18396299 = 31 ⋅593429.

It is a cyclic number.

It is not a de Polignac number, because 99269381 - 2² = 99269377 is a prime.

It is a super-2 number, since 2×99269381² = 19708820008246322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99269351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235025 + ... + 235446.

It is an arithmetic number, because the mean of its divisors is an integer number (24935016).

Almost surely, 2^99269381 is an apocalyptic number.

It is an amenable number.

99269381 is a deficient number, since it is larger than the sum of its proper divisors (470683).

99269381 is a wasteful number, since it uses less digits than its factorization.

99269381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470682.

The product of its digits is 209952, while the sum is 47.

The square root of 99269381 is about 9963.4020796112. The cubic root of 99269381 is about 463.0257081356.

The spelling of 99269381 in words is "ninety-nine million, two hundred sixty-nine thousand, three hundred eighty-one".