90256349 has 8 divisors (see below), whose sum is σ = 96121080. Its totient is φ = 84453376.

The previous prime is 90256339. The next prime is 90256363. The reversal of 90256349 is 94365209.

It can be written as a sum of positive squares in 4 ways, for example, as 73650724 + 16605625 = 8582^2 + 4075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90256349 - 2²⁰ = 89207773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90256339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12404 + ... + 18285.

It is an arithmetic number, because the mean of its divisors is an integer number (12015135).

Almost surely, 2^90256349 is an apocalyptic number.

It is an amenable number.

90256349 is a deficient number, since it is larger than the sum of its proper divisors (5864731).

90256349 is a wasteful number, since it uses less digits than its factorization.

90256349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30879.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 90256349 is about 9500.3341520180. The cubic root of 90256349 is about 448.5655541472.

The spelling of 90256349 in words is "ninety million, two hundred fifty-six thousand, three hundred forty-nine".