1975963 has 4 divisors (see below), whose sum is σ = 2155608. Its totient is φ = 1796320.

The previous prime is 1975957. The next prime is 1975991. The reversal of 1975963 is 3695791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1975963 - 2⁵ = 1975931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1975933) 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, 89806 + ... + 89827.

It is an arithmetic number, because the mean of its divisors is an integer number (538902).

2^1975963 is an apocalyptic number.

1975963 is a deficient number, since it is larger than the sum of its proper divisors (179645).

1975963 is a wasteful number, since it uses less digits than its factorization.

1975963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179644.

The product of its digits is 51030, while the sum is 40.

The square root of 1975963 is about 1405.6895105250. The cubic root of 1975963 is about 125.4853239136.

It can be divided in two parts, 197 and 5963, that multiplied together give a palindrome (1174711).

The spelling of 1975963 in words is "one million, nine hundred seventy-five thousand, nine hundred sixty-three".