613690 has 32 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 191040.

The previous prime is 613673. The next prime is 613699. The reversal of 613690 is 96316.

It is a super-2 number, since 2×613690² = 753230832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372 + ... + 1168.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁶¹³⁶⁹⁰ is an apocalyptic number.

613690 is an abundant number, since it is smaller than the sum of its proper divisors (765254).

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

613690 is a wasteful number, since it uses less digits than its factorization.

613690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 613690 is about 783.3836863249. The cubic root of 613690 is about 84.9799260555.

It can be divided in two parts, 6136 and 90, that added together give a palindrome (6226).

The spelling of 613690 in words is "six hundred thirteen thousand, six hundred ninety".