77342 has 4 divisors (see below), whose sum is σ = 116016. Its totient is φ = 38670.

The previous prime is 77339. The next prime is 77347. The reversal of 77342 is 24377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24377 = 19 ⋅1283.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19334 + ... + 19337.

It is an arithmetic number, because the mean of its divisors is an integer number (29004).

2⁷⁷³⁴² is an apocalyptic number.

77342 is a deficient number, since it is larger than the sum of its proper divisors (38674).

77342 is a wasteful number, since it uses less digits than its factorization.

77342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38673.

The product of its digits is 1176, while the sum is 23.

The square root of 77342 is about 278.1042969823. The cubic root of 77342 is about 42.6061016777.

The spelling of 77342 in words is "seventy-seven thousand, three hundred forty-two", and thus it is an iban number.