90299811 has 16 divisors (see below), whose sum is σ = 138528000. Its totient is φ = 51251808.

The previous prime is 90299809. The next prime is 90299813. The reversal of 90299811 is 11899209.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90299809) and next prime (90299813).

It is not a de Polignac number, because 90299811 - 2¹ = 90299809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90299811.

It is not an unprimeable number, because it can be changed into a prime (90299813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11301 + ... + 17558.

It is an arithmetic number, because the mean of its divisors is an integer number (8658000).

Almost surely, 2^90299811 is an apocalyptic number.

90299811 is a deficient number, since it is larger than the sum of its proper divisors (48228189).

90299811 is a wasteful number, since it uses less digits than its factorization.

90299811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29018.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 90299811 is about 9502.6212699444. The cubic root of 90299811 is about 448.6375432755.

The spelling of 90299811 in words is "ninety million, two hundred ninety-nine thousand, eight hundred eleven".