1953963 has 48 divisors (see below), whose sum is σ = 3459456. Its totient is φ = 1088640.

The previous prime is 1953949. The next prime is 1953967. The reversal of 1953963 is 3693591.

It is not a de Polignac number, because 1953963 - 2⁹ = 1953451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1953967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45420 + ... + 45462.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2^1953963 is an apocalyptic number.

1953963 is a deficient number, since it is larger than the sum of its proper divisors (1505493).

1953963 is a wasteful number, since it uses less digits than its factorization.

1953963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 74 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 1953963 is about 1397.8422657797. The cubic root of 1953963 is about 125.0178747772.

It can be divided in two parts, 1953 and 963, that added together give a square (2916 = 54²).

The spelling of 1953963 in words is "one million, nine hundred fifty-three thousand, nine hundred sixty-three".