1948661 has 8 divisors (see below), whose sum is σ = 2289504. Its totient is φ = 1635120.

The previous prime is 1948649. The next prime is 1948669. The reversal of 1948661 is 1668491.

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 1948661 - 2¹⁴ = 1932277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948669) 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, 6671 + ... + 6956.

It is an arithmetic number, because the mean of its divisors is an integer number (286188).

2^1948661 is an apocalyptic number.

1948661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1948661 is a deficient number, since it is larger than the sum of its proper divisors (340843).

1948661 is a wasteful number, since it uses less digits than its factorization.

1948661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651.

The product of its digits is 10368, while the sum is 35.

The square root of 1948661 is about 1395.9444831368. The cubic root of 1948661 is about 124.9046953547.

The spelling of 1948661 in words is "one million, nine hundred forty-eight thousand, six hundred sixty-one".