97439 has 4 divisors (see below), whose sum is σ = 98280. Its totient is φ = 96600.

The previous prime is 97429. The next prime is 97441. The reversal of 97439 is 93479.

It is a happy number.

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 97439 - 2⁴ = 97423 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 (97429) 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, 212 + ... + 489.

It is an arithmetic number, because the mean of its divisors is an integer number (24570).

2⁹⁷⁴³⁹ is an apocalyptic number.

97439 is a deficient number, since it is larger than the sum of its proper divisors (841).

97439 is a wasteful number, since it uses less digits than its factorization.

97439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its digits is 6804, while the sum is 32.

The square root of 97439 is about 312.1522064634. The cubic root of 97439 is about 46.0162198630.

The spelling of 97439 in words is "ninety-seven thousand, four hundred thirty-nine".