1007989523 has 2 divisors, whose sum is σ = 1007989524. Its totient is φ = 1007989522.

The previous prime is 1007989471. The next prime is 1007989547. The reversal of 1007989523 is 3259897001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1007989523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1007989123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503994761 + 503994762.

It is an arithmetic number, because the mean of its divisors is an integer number (503994762).

Almost surely, 2^1007989523 is an apocalyptic number.

1007989523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1007989523 is an equidigital number, since it uses as much as digits as its factorization.

1007989523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 1007989523 is about 31748.8507351054. The cubic root of 1007989523 is about 1002.6561131500.

The spelling of 1007989523 in words is "one billion, seven million, nine hundred eighty-nine thousand, five hundred twenty-three".