99270690 has 32 divisors (see below), whose sum is σ = 238533120. Its totient is φ = 26440704.

The previous prime is 99270671. The next prime is 99270697. The reversal of 99270690 is 9607299.

It is a super-2 number, since 2×99270690² = 19709339786152200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99270697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35151 + ... + 37869.

It is an arithmetic number, because the mean of its divisors is an integer number (7454160).

Almost surely, 2^99270690 is an apocalyptic number.

99270690 is an abundant number, since it is smaller than the sum of its proper divisors (139262430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99270690 is a wasteful number, since it uses less digits than its factorization.

99270690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 99270690 is about 9963.4677698079. The cubic root of 99270690 is about 463.0277433318.

The spelling of 99270690 in words is "ninety-nine million, two hundred seventy thousand, six hundred ninety".