1369661 has 8 divisors (see below), whose sum is σ = 1410048. Its totient is φ = 1330000.

The previous prime is 1369657. The next prime is 1369723. The reversal of 1369661 is 1669631.

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 1369661 - 2² = 1369657 is a prime.

It is a super-3 number, since 3×1369661³ = 7708333994959055343, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369651) 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, 7076 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (176256).

2^1369661 is an apocalyptic number.

It is an amenable number.

1369661 is a deficient number, since it is larger than the sum of its proper divisors (40387).

1369661 is a wasteful number, since it uses less digits than its factorization.

1369661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its digits is 5832, while the sum is 32.

The square root of 1369661 is about 1170.3251684895. The cubic root of 1369661 is about 111.0548926342.

The spelling of 1369661 in words is "one million, three hundred sixty-nine thousand, six hundred sixty-one".