90415333 has 4 divisors (see below), whose sum is σ = 95733900. Its totient is φ = 85096768.

The previous prime is 90415279. The next prime is 90415343. The reversal of 90415333 is 33351409.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75220929 + 15194404 = 8673^2 + 3898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90415333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90415343) 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 3 ways as a sum of consecutive naturals, for example, 2659258 + ... + 2659291.

It is an arithmetic number, because the mean of its divisors is an integer number (23933475).

Almost surely, 2^90415333 is an apocalyptic number.

It is an amenable number.

90415333 is a deficient number, since it is larger than the sum of its proper divisors (5318567).

90415333 is a wasteful number, since it uses less digits than its factorization.

90415333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318566.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 90415333 is about 9508.6977552134. The cubic root of 90415333 is about 448.8287781561.

The spelling of 90415333 in words is "ninety million, four hundred fifteen thousand, three hundred thirty-three".