77494 has 4 divisors (see below), whose sum is σ = 116244. Its totient is φ = 38746.

The previous prime is 77491. The next prime is 77509. The reversal of 77494 is 49477.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19372 + ... + 19375.

It is an arithmetic number, because the mean of its divisors is an integer number (29061).

2⁷⁷⁴⁹⁴ is an apocalyptic number.

77494 is a deficient number, since it is larger than the sum of its proper divisors (38750).

77494 is a wasteful number, since it uses less digits than its factorization.

77494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38749.

The product of its digits is 7056, while the sum is 31.

The square root of 77494 is about 278.3774416148. The cubic root of 77494 is about 42.6339946275.

It can be divided in two parts, 774 and 94, that added together give a palindrome (868).

The spelling of 77494 in words is "seventy-seven thousand, four hundred ninety-four".