1949597 has 4 divisors (see below), whose sum is σ = 2099580. Its totient is φ = 1799616.

The previous prime is 1949581. The next prime is 1949627. The reversal of 1949597 is 7959491.

1949597 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116281 + 1833316 = 341^2 + 1354^2 .

It is not a de Polignac number, because 1949597 - 2⁴ = 1949581 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 (1949527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74972 + ... + 74997.

It is an arithmetic number, because the mean of its divisors is an integer number (524895).

2^1949597 is an apocalyptic number.

It is an amenable number.

1949597 is a deficient number, since it is larger than the sum of its proper divisors (149983).

1949597 is a wasteful number, since it uses less digits than its factorization.

1949597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149982.

The product of its digits is 102060, while the sum is 44.

The square root of 1949597 is about 1396.2796997737. The cubic root of 1949597 is about 124.9246906371.

The spelling of 1949597 in words is "one million, nine hundred forty-nine thousand, five hundred ninety-seven".