8734874021 has 4 divisors (see below), whose sum is σ = 8757329100. Its totient is φ = 8712418944.

The previous prime is 8734874017. The next prime is 8734874053. The reversal of 8734874021 is 1204784378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4527405796 + 4207468225 = 67286^2 + 64865^2 .

It is a cyclic number.

It is not a de Polignac number, because 8734874021 - 2² = 8734874017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8734874011) 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, 11226956 + ... + 11227733.

It is an arithmetic number, because the mean of its divisors is an integer number (2189332275).

Almost surely, 2^8734874021 is an apocalyptic number.

It is an amenable number.

8734874021 is a deficient number, since it is larger than the sum of its proper divisors (22455079).

8734874021 is a wasteful number, since it uses less digits than its factorization.

8734874021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22455078.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 8734874021 is about 93460.5479386891. The cubic root of 8734874021 is about 2059.4545655120.

The spelling of 8734874021 in words is "eight billion, seven hundred thirty-four million, eight hundred seventy-four thousand, twenty-one".