273285993 has 4 divisors (see below), whose sum is σ = 364381328. Its totient is φ = 182190660.

The previous prime is 273285983. The next prime is 273286003. The reversal of 273285993 is 399582372.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (273285983) and next prime (273286003).

It is not a de Polignac number, because 273285993 - 2²² = 269091689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273285913) 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, 45547663 + ... + 45547668.

It is an arithmetic number, because the mean of its divisors is an integer number (91095332).

Almost surely, 2^273285993 is an apocalyptic number.

It is an amenable number.

273285993 is a deficient number, since it is larger than the sum of its proper divisors (91095335).

273285993 is an equidigital number, since it uses as much as digits as its factorization.

273285993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91095334.

The product of its digits is 816480, while the sum is 48.

The square root of 273285993 is about 16531.3639183220. The cubic root of 273285993 is about 648.9418626099.

The spelling of 273285993 in words is "two hundred seventy-three million, two hundred eighty-five thousand, nine hundred ninety-three".