1660379 has 8 divisors (see below), whose sum is σ = 1908960. Its totient is φ = 1414656.

The previous prime is 1660367. The next prime is 1660387. The reversal of 1660379 is 9730661.

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 1660379 - 2¹² = 1656283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1663379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (238620).

2^1660379 is an apocalyptic number.

1660379 is a deficient number, since it is larger than the sum of its proper divisors (248581).

1660379 is a wasteful number, since it uses less digits than its factorization.

1660379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1660379 is about 1288.5569448030. The cubic root of 1660379 is about 118.4138251981.

The spelling of 1660379 in words is "one million, six hundred sixty thousand, three hundred seventy-nine".