1958849 has 4 divisors (see below), whose sum is σ = 1977264. Its totient is φ = 1940436.

The previous prime is 1958837. The next prime is 1958861. The reversal of 1958849 is 9488591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9488591 = 7 ⋅1355513.

It is an interprime number because it is at equal distance from previous prime (1958837) and next prime (1958861).

It is a cyclic number.

It is not a de Polignac number, because 1958849 - 2⁴ = 1958833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1958899) 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, 9047 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (494316).

2^1958849 is an apocalyptic number.

It is an amenable number.

1958849 is a deficient number, since it is larger than the sum of its proper divisors (18415).

1958849 is a wasteful number, since it uses less digits than its factorization.

1958849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18414.

The product of its digits is 103680, while the sum is 44.

The square root of 1958849 is about 1399.5888682038. The cubic root of 1958849 is about 125.1219929031.

The spelling of 1958849 in words is "one million, nine hundred fifty-eight thousand, eight hundred forty-nine".