613612477 has 8 divisors (see below), whose sum is σ = 630560600. Its totient is φ = 596683584.

The previous prime is 613612463. The next prime is 613612499. The reversal of 613612477 is 774216316.

It can be written as a sum of positive squares in 4 ways, for example, as 54479161 + 559133316 = 7381^2 + 23646^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 613612477 - 2²³ = 605223869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613612457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80299 + ... + 87607.

It is an arithmetic number, because the mean of its divisors is an integer number (78820075).

Almost surely, 2^613612477 is an apocalyptic number.

It is an amenable number.

613612477 is a deficient number, since it is larger than the sum of its proper divisors (16948123).

613612477 is a wasteful number, since it uses less digits than its factorization.

613612477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615.

The product of its digits is 42336, while the sum is 37.

The square root of 613612477 is about 24771.2025747641. The cubic root of 613612477 is about 849.7634760586.

The spelling of 613612477 in words is "six hundred thirteen million, six hundred twelve thousand, four hundred seventy-seven".