1912963 has 4 divisors (see below), whose sum is σ = 2060128. Its totient is φ = 1765800.

The previous prime is 1912951. The next prime is 1912969. The reversal of 1912963 is 3692191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3692191 = 433 ⋅8527.

It is a cyclic number.

It is not a de Polignac number, because 1912963 - 2⁹ = 1912451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1912969) 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, 73563 + ... + 73588.

It is an arithmetic number, because the mean of its divisors is an integer number (515032).

2^1912963 is an apocalyptic number.

1912963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1912963 is a deficient number, since it is larger than the sum of its proper divisors (147165).

1912963 is a wasteful number, since it uses less digits than its factorization.

1912963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147164.

The product of its digits is 2916, while the sum is 31.

The square root of 1912963 is about 1383.0990564670. The cubic root of 1912963 is about 124.1372699402.

The spelling of 1912963 in words is "one million, nine hundred twelve thousand, nine hundred sixty-three".