613672605 has 80 divisors (see below), whose sum is σ = 1354007424. Its totient is φ = 258940800.

The previous prime is 613672601. The next prime is 613672663. The reversal of 613672605 is 506276316.

It is not a de Polignac number, because 613672605 - 2² = 613672601 is a prime.

It is a super-2 number, since 2×613672605² = 753188132254972050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 613672605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613672601) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28530 + ... + 45180.

Almost surely, 2^613672605 is an apocalyptic number.

613672605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

613672605 is an abundant number, since it is smaller than the sum of its proper divisors (740334819).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613672605 is a wasteful number, since it uses less digits than its factorization.

613672605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16688 (or 16679 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 613672605 is about 24772.4162123924. The cubic root of 613672605 is about 849.7912313121.

The spelling of 613672605 in words is "six hundred thirteen million, six hundred seventy-two thousand, six hundred five".