613457 has 4 divisors (see below), whose sum is σ = 660660. Its totient is φ = 566256.

The previous prime is 613451. The next prime is 613463. The reversal of 613457 is 754316.

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

It is an interprime number because it is at equal distance from previous prime (613451) and next prime (613463).

It can be written as a sum of positive squares in 2 ways, for example, as 398161 + 215296 = 631^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 613457 - 2⁴ = 613441 is a prime.

It is a plaindrome in base 9 and base 11.

It is not an unprimeable number, because it can be changed into a prime (613451) 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, 23582 + ... + 23607.

It is an arithmetic number, because the mean of its divisors is an integer number (165165).

2⁶¹³⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

613457 is a deficient number, since it is larger than the sum of its proper divisors (47203).

613457 is a wasteful number, since it uses less digits than its factorization.

613457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47202.

The product of its digits is 2520, while the sum is 26.

The square root of 613457 is about 783.2349583618. The cubic root of 613457 is about 84.9691699033.

The spelling of 613457 in words is "six hundred thirteen thousand, four hundred fifty-seven".