273899997 has 12 divisors (see below), whose sum is σ = 452152480. Its totient is φ = 156514248.

The previous prime is 273899963. The next prime is 273899999. The reversal of 273899997 is 799998372.

It is not a de Polignac number, because 273899997 - 2⁸ = 273899741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 4347619 = 273899997 / (2 + 7 + 3 + 8 + 9 + 9 + 9 + 9 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273899999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2173747 + ... + 2173872.

Almost surely, 2^273899997 is an apocalyptic number.

It is an amenable number.

273899997 is a deficient number, since it is larger than the sum of its proper divisors (178252483).

273899997 is a wasteful number, since it uses less digits than its factorization.

273899997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347632 (or 4347629 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The square root of 273899997 is about 16549.9243804919. The cubic root of 273899997 is about 649.4275014329.

The spelling of 273899997 in words is "two hundred seventy-three million, eight hundred ninety-nine thousand, nine hundred ninety-seven".