980023691 has 2 divisors, whose sum is σ = 980023692. Its totient is φ = 980023690.

The previous prime is 980023669. The next prime is 980023711. The reversal of 980023691 is 196320089.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 980023691 - 2¹⁴ = 980007307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (980023601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490011845 + 490011846.

It is an arithmetic number, because the mean of its divisors is an integer number (490011846).

Almost surely, 2^980023691 is an apocalyptic number.

980023691 is a deficient number, since it is larger than the sum of its proper divisors (1).

980023691 is an equidigital number, since it uses as much as digits as its factorization.

980023691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 980023691 is about 31305.3300733278. The cubic root of 980023691 is about 993.2963923948.

The spelling of 980023691 in words is "nine hundred eighty million, twenty-three thousand, six hundred ninety-one".