2073973281 has 4 divisors (see below), whose sum is σ = 2765297712. Its totient is φ = 1382648852.

The previous prime is 2073973271. The next prime is 2073973283. The reversal of 2073973281 is 1823793702.

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 a cyclic number.

It is not a de Polignac number, because 2073973281 - 2⁶ = 2073973217 is a prime.

It is a super-2 number, since 2×2073973281² = 8602730340603809922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2073973283) 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, 345662211 + ... + 345662216.

It is an arithmetic number, because the mean of its divisors is an integer number (691324428).

Almost surely, 2^2073973281 is an apocalyptic number.

It is an amenable number.

2073973281 is a deficient number, since it is larger than the sum of its proper divisors (691324431).

2073973281 is an equidigital number, since it uses as much as digits as its factorization.

2073973281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691324430.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 2073973281 is about 45540.8967961765. The cubic root of 2073973281 is about 1275.2667966097.

The spelling of 2073973281 in words is "two billion, seventy-three million, nine hundred seventy-three thousand, two hundred eighty-one".