1939601 has 6 divisors (see below), whose sum is σ = 1987650. Its totient is φ = 1892688.

The previous prime is 1939591. The next prime is 1939603. The reversal of 1939601 is 1069391.

It can be written as a sum of positive squares in only one way, i.e., 1893376 + 46225 = 1376^2 + 215^2 .

It is not a de Polignac number, because 1939601 - 2¹⁰ = 1938577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1325 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (331275).

2^1939601 is an apocalyptic number.

It is an amenable number.

1939601 is a deficient number, since it is larger than the sum of its proper divisors (48049).

1939601 is an equidigital number, since it uses as much as digits as its factorization.

1939601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1939601 is about 1392.6955877003. The cubic root of 1939601 is about 124.7108195131.

The spelling of 1939601 in words is "one million, nine hundred thirty-nine thousand, six hundred one".