7557983 has 2 divisors, whose sum is σ = 7557984. Its totient is φ = 7557982.

The previous prime is 7557973. The next prime is 7557989. The reversal of 7557983 is 3897557.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7557983 - 2⁴ = 7557967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7557989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3778991 + 3778992.

It is an arithmetic number, because the mean of its divisors is an integer number (3778992).

Almost surely, 2^7557983 is an apocalyptic number.

7557983 is a deficient number, since it is larger than the sum of its proper divisors (1).

7557983 is an equidigital number, since it uses as much as digits as its factorization.

7557983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 44.

The square root of 7557983 is about 2749.1786046017. The cubic root of 7557983 is about 196.2465227182.

The spelling of 7557983 in words is "seven million, five hundred fifty-seven thousand, nine hundred eighty-three".