7215006993 has 8 divisors (see below), whose sum is σ = 9880009728. Its totient is φ = 4680004464.

The previous prime is 7215006979. The next prime is 7215007003. The reversal of 7215006993 is 3996005127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7215006993 - 2¹⁰ = 7215005969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7215006923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32499921 + ... + 32500142.

It is an arithmetic number, because the mean of its divisors is an integer number (1235001216).

Almost surely, 2^7215006993 is an apocalyptic number.

It is an amenable number.

7215006993 is a deficient number, since it is larger than the sum of its proper divisors (2665002735).

7215006993 is a wasteful number, since it uses less digits than its factorization.

7215006993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65000103.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 7215006993 is about 84941.1972661087. The cubic root of 7215006993 is about 1932.3194208331.

The spelling of 7215006993 in words is "seven billion, two hundred fifteen million, six thousand, nine hundred ninety-three".