97727621 has 8 divisors (see below), whose sum is σ = 107344320. Its totient is φ = 88558272.

The previous prime is 97727599. The next prime is 97727629. The reversal of 97727621 is 12672779.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97727621 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 (97727629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111380 + ... + 112253.

It is an arithmetic number, because the mean of its divisors is an integer number (13418040).

Almost surely, 2^97727621 is an apocalyptic number.

It is an amenable number.

97727621 is a deficient number, since it is larger than the sum of its proper divisors (9616699).

97727621 is a wasteful number, since it uses less digits than its factorization.

97727621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223675.

The product of its digits is 74088, while the sum is 41.

The square root of 97727621 is about 9885.7281471827. The cubic root of 97727621 is about 460.6160947633.

The spelling of 97727621 in words is "ninety-seven million, seven hundred twenty-seven thousand, six hundred twenty-one".