1958983 has 8 divisors (see below), whose sum is σ = 2178176. Its totient is φ = 1749600.

The previous prime is 1958959. The next prime is 1958993. The reversal of 1958983 is 3898591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1958983 - 2⁹ = 1958471 is a prime.

It is a super-2 number, since 2×1958983² = 7675228788578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (272272).

2^1958983 is an apocalyptic number.

1958983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1958983 is a deficient number, since it is larger than the sum of its proper divisors (219193).

1958983 is a wasteful number, since it uses less digits than its factorization.

1958983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905.

The product of its digits is 77760, while the sum is 43.

The square root of 1958983 is about 1399.6367385861. The cubic root of 1958983 is about 125.1248459331.

The spelling of 1958983 in words is "one million, nine hundred fifty-eight thousand, nine hundred eighty-three".