7997297415 has 16 divisors (see below), whose sum is σ = 12796874208. Its totient is φ = 4264825856.

The previous prime is 7997297411. The next prime is 7997297417. The reversal of 7997297415 is 5147927997.

It is a cyclic number.

It is not a de Polignac number, because 7997297415 - 2² = 7997297411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997297411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214867 + ... + 249323.

It is an arithmetic number, because the mean of its divisors is an integer number (799804638).

Almost surely, 2^7997297415 is an apocalyptic number.

7997297415 is a deficient number, since it is larger than the sum of its proper divisors (4799576793).

7997297415 is a wasteful number, since it uses less digits than its factorization.

7997297415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49938.

The product of its digits is 10001880, while the sum is 60.

The square root of 7997297415 is about 89427.6099143883. The cubic root of 7997297415 is about 1999.7747592176.

The spelling of 7997297415 in words is "seven billion, nine hundred ninety-seven million, two hundred ninety-seven thousand, four hundred fifteen".