1949877 has 6 divisors (see below), whose sum is σ = 2816502. Its totient is φ = 1299912.

The previous prime is 1949839. The next prime is 1949881. The reversal of 1949877 is 7789491.

It can be written as a sum of positive squares in only one way, i.e., 1887876 + 62001 = 1374^2 + 249^2 .

It is not a de Polignac number, because 1949877 - 2⁶ = 1949813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108318 + ... + 108335.

It is an arithmetic number, because the mean of its divisors is an integer number (469417).

2^1949877 is an apocalyptic number.

It is an amenable number.

1949877 is a deficient number, since it is larger than the sum of its proper divisors (866625).

1949877 is a wasteful number, since it uses less digits than its factorization.

1949877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216659 (or 216656 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1949877 is about 1396.3799626176. The cubic root of 1949877 is about 124.9306708882.

The spelling of 1949877 in words is "one million, nine hundred forty-nine thousand, eight hundred seventy-seven".