273220987 has 8 divisors (see below), whose sum is σ = 302190896. Its totient is φ = 245387232.

The previous prime is 273220973. The next prime is 273220999. The reversal of 273220987 is 789022372.

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 273220987 - 2⁷ = 273220859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273220907) 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, 283533 + ... + 284494.

It is an arithmetic number, because the mean of its divisors is an integer number (37773862).

Almost surely, 2^273220987 is an apocalyptic number.

273220987 is a deficient number, since it is larger than the sum of its proper divisors (28969909).

273220987 is a wasteful number, since it uses less digits than its factorization.

273220987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568077.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 273220987 is about 16529.3976599270. The cubic root of 273220987 is about 648.8904043560.

The spelling of 273220987 in words is "two hundred seventy-three million, two hundred twenty thousand, nine hundred eighty-seven".