2497391697 has 8 divisors (see below), whose sum is σ = 3330370656. Its totient is φ = 1664670272.

The previous prime is 2497391639. The next prime is 2497391717. The reversal of 2497391697 is 7961937942.

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 2497391697 - 2¹¹ = 2497389649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2497311697) 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, 40488 + ... + 81449.

It is an arithmetic number, because the mean of its divisors is an integer number (416296332).

Almost surely, 2^2497391697 is an apocalyptic number.

It is an amenable number.

2497391697 is a deficient number, since it is larger than the sum of its proper divisors (832978959).

2497391697 is a wasteful number, since it uses less digits than its factorization.

2497391697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128767.

The product of its digits is 5143824, while the sum is 57.

The square root of 2497391697 is about 49973.9101632042. The cubic root of 2497391697 is about 1356.7366424783.

The spelling of 2497391697 in words is "two billion, four hundred ninety-seven million, three hundred ninety-one thousand, six hundred ninety-seven".