90352069 has 12 divisors (see below), whose sum is σ = 94282560. Its totient is φ = 86559200.

The previous prime is 90352061. The next prime is 90352091. The reversal of 90352069 is 96025309.

It is a happy number.

It is not a de Polignac number, because 90352069 - 2³ = 90352061 is a prime.

It is a super-2 number, since 2×90352069² = 16326992745161522, 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 (90352061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98724 + ... + 99634.

It is an arithmetic number, because the mean of its divisors is an integer number (7856880).

Almost surely, 2^90352069 is an apocalyptic number.

It is an amenable number.

90352069 is a deficient number, since it is larger than the sum of its proper divisors (3930491).

90352069 is an equidigital number, since it uses as much as digits as its factorization.

90352069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 90352069 is about 9505.3705345978. The cubic root of 90352069 is about 448.7240712511.

The spelling of 90352069 in words is "ninety million, three hundred fifty-two thousand, sixty-nine".