273397656 has 96 divisors (see below), whose sum is σ = 798474240. Its totient is φ = 77781312.

The previous prime is 273397651. The next prime is 273397661. The reversal of 273397656 is 656793372.

It is an interprime number because it is at equal distance from previous prime (273397651) and next prime (273397661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273397651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450105 + ... + 450711.

It is an arithmetic number, because the mean of its divisors is an integer number (8317440).

Almost surely, 2^273397656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273397656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399237120).

273397656 is an abundant number, since it is smaller than the sum of its proper divisors (525076584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273397656 is a wasteful number, since it uses less digits than its factorization.

273397656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1002 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 48.

The square root of 273397656 is about 16534.7408809452. The cubic root of 273397656 is about 649.0302351451.

The spelling of 273397656 in words is "two hundred seventy-three million, three hundred ninety-seven thousand, six hundred fifty-six".