97539 has 16 divisors (see below), whose sum is σ = 145824. Its totient is φ = 57600.

The previous prime is 97523. The next prime is 97547. The reversal of 97539 is 93579.

It is not a de Polignac number, because 97539 - 2⁴ = 97523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1569 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (9114).

2⁹⁷⁵³⁹ is an apocalyptic number.

97539 is a deficient number, since it is larger than the sum of its proper divisors (48285).

97539 is a wasteful number, since it uses less digits than its factorization.

97539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118.

The product of its digits is 8505, while the sum is 33.

The square root of 97539 is about 312.3123436562. The cubic root of 97539 is about 46.0319563706.

It can be divided in two parts, 975 and 39, that multiplied together give a square (38025 = 195²).

The spelling of 97539 in words is "ninety-seven thousand, five hundred thirty-nine".