97444239 has 8 divisors (see below), whose sum is σ = 130235952. Its totient is φ = 64807680.

The previous prime is 97444211. The next prime is 97444247. The reversal of 97444239 is 93244479.

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

It is not a de Polignac number, because 97444239 - 2⁹ = 97443727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97444239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97444279) 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, 37314 + ... + 39839.

It is an arithmetic number, because the mean of its divisors is an integer number (16279494).

Almost surely, 2^97444239 is an apocalyptic number.

97444239 is a deficient number, since it is larger than the sum of its proper divisors (32791713).

97444239 is a wasteful number, since it uses less digits than its factorization.

97444239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77577.

The product of its digits is 217728, while the sum is 42.

The square root of 97444239 is about 9871.3848572528. The cubic root of 97444239 is about 460.1704456580.

The spelling of 97444239 in words is "ninety-seven million, four hundred forty-four thousand, two hundred thirty-nine".