78413 has 4 divisors (see below), whose sum is σ = 82560. Its totient is φ = 74268.

The previous prime is 78401. The next prime is 78427. The reversal of 78413 is 31487.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78413 - 2⁸ = 78157 is a prime.

It is a super-2 number, since 2×78413² = 12297197138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78713) 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, 2045 + ... + 2082.

It is an arithmetic number, because the mean of its divisors is an integer number (20640).

2⁷⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

78413 is a deficient number, since it is larger than the sum of its proper divisors (4147).

78413 is a wasteful number, since it uses less digits than its factorization.

78413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146.

The product of its digits is 672, while the sum is 23.

The square root of 78413 is about 280.0232133235. The cubic root of 78413 is about 42.8018647104.

It can be divided in two parts, 784 and 13, that added together give a palindrome (797).

The spelling of 78413 in words is "seventy-eight thousand, four hundred thirteen".