2539793397 has 8 divisors (see below), whose sum is σ = 3386784960. Its totient is φ = 1692998720.

The previous prime is 2539793383. The next prime is 2539793401. The reversal of 2539793397 is 7933979352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2539793397 - 2⁴ = 2539793381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539793317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15897 + ... + 73022.

It is an arithmetic number, because the mean of its divisors is an integer number (423348120).

Almost surely, 2^2539793397 is an apocalyptic number.

It is an amenable number.

2539793397 is a deficient number, since it is larger than the sum of its proper divisors (846991563).

2539793397 is an equidigital number, since it uses as much as digits as its factorization.

2539793397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98443.

The product of its digits is 9644670, while the sum is 57.

The square root of 2539793397 is about 50396.3629342436. The cubic root of 2539793397 is about 1364.3719951912.

The spelling of 2539793397 in words is "two billion, five hundred thirty-nine million, seven hundred ninety-three thousand, three hundred ninety-seven".