7034003021 has 4 divisors (see below), whose sum is σ = 7074662172. Its totient is φ = 6993343872.

The previous prime is 7034003017. The next prime is 7034003023. The reversal of 7034003021 is 1203004307.

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 3204126025 + 3829876996 = 56605^2 + 61886^2 .

It is a cyclic number.

It is not a de Polignac number, because 7034003021 - 2² = 7034003017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7034002984 and 7034003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7034003023) 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, 20329316 + ... + 20329661.

It is an arithmetic number, because the mean of its divisors is an integer number (1768665543).

Almost surely, 2^7034003021 is an apocalyptic number.

It is an amenable number.

7034003021 is a deficient number, since it is larger than the sum of its proper divisors (40659151).

7034003021 is a wasteful number, since it uses less digits than its factorization.

7034003021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40659150.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 7034003021 is about 83868.9633952871. The cubic root of 7034003021 is about 1916.0235828422.

Adding to 7034003021 its reverse (1203004307), we get a palindrome (8237007328).

The spelling of 7034003021 in words is "seven billion, thirty-four million, three thousand, twenty-one".