613378 has 4 divisors (see below), whose sum is σ = 920070. Its totient is φ = 306688.

The previous prime is 613367. The next prime is 613381. The reversal of 613378 is 873316.

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

It can be written as a sum of positive squares in only one way, i.e., 613089 + 289 = 783^2 + 17^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153343 + ... + 153346.

2⁶¹³³⁷⁸ is an apocalyptic number.

613378 is a deficient number, since it is larger than the sum of its proper divisors (306692).

613378 is a wasteful number, since it uses less digits than its factorization.

613378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306691.

The product of its digits is 3024, while the sum is 28.

The square root of 613378 is about 783.1845248727. The cubic root of 613378 is about 84.9655223493.

The spelling of 613378 in words is "six hundred thirteen thousand, three hundred seventy-eight".