97809280439 has 8 divisors (see below), whose sum is σ = 105370850592. Its totient is φ = 90253107360.

The previous prime is 97809280433. The next prime is 97809280451. The reversal of 97809280439 is 93408290879.

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

It is not a de Polignac number, because 97809280439 - 2³² = 93514313143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97809280433) 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, 1311584 + ... + 1384149.

It is an arithmetic number, because the mean of its divisors is an integer number (13171356324).

Almost surely, 2^97809280439 is an apocalyptic number.

97809280439 is a deficient number, since it is larger than the sum of its proper divisors (7561570153).

97809280439 is a wasteful number, since it uses less digits than its factorization.

97809280439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698537.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 97809280439 in words is "ninety-seven billion, eight hundred nine million, two hundred eighty thousand, four hundred thirty-nine".