1611396 has 36 divisors (see below), whose sum is σ = 4314492. Its totient is φ = 505344.

The previous prime is 1611391. The next prime is 1611397. The reversal of 1611396 is 6931161.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 864900 = 864^2 + 930^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1611391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705 + ... + 1928.

It is an arithmetic number, because the mean of its divisors is an integer number (119847).

2^1611396 is an apocalyptic number.

It is an amenable number.

1611396 is an abundant number, since it is smaller than the sum of its proper divisors (2703096).

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

1611396 is a wasteful number, since it uses less digits than its factorization.

1611396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660 (or 2655 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1611396 is about 1269.4077359147. The cubic root of 1611396 is about 117.2377370741.

The spelling of 1611396 in words is "one million, six hundred eleven thousand, three hundred ninety-six".