97221077039 has 4 divisors (see below), whose sum is σ = 97221939024. Its totient is φ = 97220215056.

The previous prime is 97221076951. The next prime is 97221077059. The reversal of 97221077039 is 93077012279.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 97221077039 - 2¹² = 97221072943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97221076984 and 97221077002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97221077059) 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, 230822 + ... + 497715.

It is an arithmetic number, because the mean of its divisors is an integer number (24305484756).

Almost surely, 2^97221077039 is an apocalyptic number.

97221077039 is a deficient number, since it is larger than the sum of its proper divisors (861985).

97221077039 is a wasteful number, since it uses less digits than its factorization.

97221077039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861984.

The product of its (nonzero) digits is 333396, while the sum is 47.

The spelling of 97221077039 in words is "ninety-seven billion, two hundred twenty-one million, seventy-seven thousand, thirty-nine".