1925969 has 4 divisors (see below), whose sum is σ = 1945140. Its totient is φ = 1906800.

The previous prime is 1925933. The next prime is 1925971. The reversal of 1925969 is 9695291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9695291 = 461 ⋅21031.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 35344 = 1375^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1925969 - 2¹² = 1921873 is a prime.

It is a super-2 number, since 2×1925969² = 7418713177922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1925909) 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 3 ways as a sum of consecutive naturals, for example, 9434 + ... + 9635.

It is an arithmetic number, because the mean of its divisors is an integer number (486285).

2^1925969 is an apocalyptic number.

It is an amenable number.

1925969 is a deficient number, since it is larger than the sum of its proper divisors (19171).

1925969 is a wasteful number, since it uses less digits than its factorization.

1925969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19170.

The product of its digits is 43740, while the sum is 41.

The square root of 1925969 is about 1387.7928519776. The cubic root of 1925969 is about 124.4179660986.

The spelling of 1925969 in words is "one million, nine hundred twenty-five thousand, nine hundred sixty-nine".