1951983 has 12 divisors (see below), whose sum is σ = 3076008. Its totient is φ = 1182960.

The previous prime is 1951967. The next prime is 1951993. The reversal of 1951983 is 3891591.

It is a happy number.

It is not a de Polignac number, because 1951983 - 2⁴ = 1951967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9760 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (256334).

2^1951983 is an apocalyptic number.

1951983 is a deficient number, since it is larger than the sum of its proper divisors (1124025).

1951983 is a wasteful number, since it uses less digits than its factorization.

1951983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19734 (or 19731 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 1951983 is about 1397.1338518553. The cubic root of 1951983 is about 124.9756325835.

The spelling of 1951983 in words is "one million, nine hundred fifty-one thousand, nine hundred eighty-three".