2047021726 has 4 divisors (see below), whose sum is σ = 3070532592. Its totient is φ = 1023510862.

The previous prime is 2047021709. The next prime is 2047021763. The reversal of 2047021726 is 6271207402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6271207402 = 2 ⋅3135603701.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511755430 + ... + 511755433.

It is an arithmetic number, because the mean of its divisors is an integer number (767633148).

Almost surely, 2^2047021726 is an apocalyptic number.

2047021726 is a deficient number, since it is larger than the sum of its proper divisors (1023510866).

2047021726 is a wasteful number, since it uses less digits than its factorization.

2047021726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023510865.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 2047021726 is about 45244.0242020977. The cubic root of 2047021726 is about 1269.7186071340.

The spelling of 2047021726 in words is "two billion, forty-seven million, twenty-one thousand, seven hundred twenty-six".