97742 has 4 divisors (see below), whose sum is σ = 146616. Its totient is φ = 48870.

The previous prime is 97729. The next prime is 97771. The reversal of 97742 is 24779.

97742 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24779 = 71 ⋅349.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

97742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24434 + ... + 24437.

It is an arithmetic number, because the mean of its divisors is an integer number (36654).

2⁹⁷⁷⁴² is an apocalyptic number.

97742 is a deficient number, since it is larger than the sum of its proper divisors (48874).

97742 is a wasteful number, since it uses less digits than its factorization.

97742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48873.

The product of its digits is 3528, while the sum is 29.

The square root of 97742 is about 312.6371698951. The cubic root of 97742 is about 46.0638684331.

The spelling of 97742 in words is "ninety-seven thousand, seven hundred forty-two".