2997517021 has 16 divisors (see below), whose sum is σ = 3201659136. Its totient is φ = 2800296576.

The previous prime is 2997517009. The next prime is 2997517079. The reversal of 2997517021 is 1207157992.

It is a cyclic number.

It is not a de Polignac number, because 2997517021 - 2²⁹ = 2460646109 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 (2997517321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164271 + ... + 181603.

It is an arithmetic number, because the mean of its divisors is an integer number (200103696).

Almost surely, 2^2997517021 is an apocalyptic number.

It is an amenable number.

2997517021 is a deficient number, since it is larger than the sum of its proper divisors (204142115).

2997517021 is a wasteful number, since it uses less digits than its factorization.

2997517021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 2997517021 is about 54749.5846650913. The cubic root of 2997517021 is about 1441.8515632162.

The spelling of 2997517021 in words is "two billion, nine hundred ninety-seven million, five hundred seventeen thousand, twenty-one".