1379661 has 8 divisors (see below), whose sum is σ = 1847424. Its totient is φ = 915840.

The previous prime is 1379659. The next prime is 1379663. The reversal of 1379661 is 1669731.

It is an interprime number because it is at equal distance from previous prime (1379659) and next prime (1379663).

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

It is not a de Polignac number, because 1379661 - 2¹ = 1379659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379663) 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, 36 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (230928).

2^1379661 is an apocalyptic number.

It is an amenable number.

1379661 is a deficient number, since it is larger than the sum of its proper divisors (467763).

1379661 is a wasteful number, since it uses less digits than its factorization.

1379661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its digits is 6804, while the sum is 33.

The square root of 1379661 is about 1174.5897156029. The cubic root of 1379661 is about 111.3245109562.

The spelling of 1379661 in words is "one million, three hundred seventy-nine thousand, six hundred sixty-one".