1949693 has 4 divisors (see below), whose sum is σ = 1954368. Its totient is φ = 1945020.

The previous prime is 1949657. The next prime is 1949707. The reversal of 1949693 is 3969491.

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: 3969491 = 29 ⋅136879.

It is a cyclic number.

It is not a de Polignac number, because 1949693 - 2¹⁰ = 1948669 is a prime.

It is a d-powerful number, because it can be written as 1 + 9⁵ + 4⁷ + 9⁶ + 6⁷ + 9⁶ + 3¹² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1949693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1943693) 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, 1643 + ... + 2568.

It is an arithmetic number, because the mean of its divisors is an integer number (488592).

2^1949693 is an apocalyptic number.

It is an amenable number.

1949693 is a deficient number, since it is larger than the sum of its proper divisors (4675).

1949693 is an equidigital number, since it uses as much as digits as its factorization.

1949693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674.

The product of its digits is 52488, while the sum is 41.

The square root of 1949693 is about 1396.3140764169. The cubic root of 1949693 is about 124.9267410734.

The spelling of 1949693 in words is "one million, nine hundred forty-nine thousand, six hundred ninety-three".