99270399 has 4 divisors (see below), whose sum is σ = 132360536. Its totient is φ = 66180264.

The previous prime is 99270377. The next prime is 99270403. The reversal of 99270399 is 99307299.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99270399 - 2⁹ = 99269887 is a prime.

It is a super-2 number, since 2×99270399² = 19709224235238402, 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 (99270319) 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, 16545064 + ... + 16545069.

It is an arithmetic number, because the mean of its divisors is an integer number (33090134).

Almost surely, 2^99270399 is an apocalyptic number.

99270399 is a deficient number, since it is larger than the sum of its proper divisors (33090137).

99270399 is a wasteful number, since it uses less digits than its factorization.

99270399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33090136.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 99270399 is about 9963.4531664479. The cubic root of 99270399 is about 463.0272908948.

The spelling of 99270399 in words is "ninety-nine million, two hundred seventy thousand, three hundred ninety-nine".