90273443 has 4 divisors (see below), whose sum is σ = 97217568. Its totient is φ = 83329320.

The previous prime is 90273419. The next prime is 90273467. The reversal of 90273443 is 34437209.

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

It is an interprime number because it is at equal distance from previous prime (90273419) and next prime (90273467).

It is a cyclic number.

It is not a de Polignac number, because 90273443 - 2¹⁶ = 90207907 is a prime.

It is a super-2 number, since 2×90273443² = 16298589022148498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90273343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472043 + ... + 3472068.

It is an arithmetic number, because the mean of its divisors is an integer number (24304392).

Almost surely, 2^90273443 is an apocalyptic number.

90273443 is a deficient number, since it is larger than the sum of its proper divisors (6944125).

90273443 is a wasteful number, since it uses less digits than its factorization.

90273443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944124.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 90273443 is about 9501.2337619911. The cubic root of 90273443 is about 448.5938708830.

The spelling of 90273443 in words is "ninety million, two hundred seventy-three thousand, four hundred forty-three".