7997554379 has 4 divisors (see below), whose sum is σ = 7997801400. Its totient is φ = 7997307360.

The previous prime is 7997554351. The next prime is 7997554387. The reversal of 7997554379 is 9734557997.

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

It is a cyclic number.

It is not a de Polignac number, because 7997554379 - 2¹⁶ = 7997488843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7997554339) 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, 66029 + ... + 142670.

It is an arithmetic number, because the mean of its divisors is an integer number (1999450350).

Almost surely, 2^7997554379 is an apocalyptic number.

7997554379 is a deficient number, since it is larger than the sum of its proper divisors (247021).

7997554379 is a wasteful number, since it uses less digits than its factorization.

7997554379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247020.

The product of its digits is 75014100, while the sum is 65.

The square root of 7997554379 is about 89429.0466179753. The cubic root of 7997554379 is about 1999.7961774789.

The spelling of 7997554379 in words is "seven billion, nine hundred ninety-seven million, five hundred fifty-four thousand, three hundred seventy-nine".