608695091 has 2 divisors, whose sum is σ = 608695092. Its totient is φ = 608695090.

The previous prime is 608695063. The next prime is 608695099. The reversal of 608695091 is 190596806.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 608695091 - 2¹⁸ = 608432947 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (608695099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304347545 + 304347546.

It is an arithmetic number, because the mean of its divisors is an integer number (304347546).

Almost surely, 2^608695091 is an apocalyptic number.

608695091 is a deficient number, since it is larger than the sum of its proper divisors (1).

608695091 is an equidigital number, since it uses as much as digits as its factorization.

608695091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 608695091 is about 24671.7468169564. The cubic root of 608695091 is about 847.4874319337.

The spelling of 608695091 in words is "six hundred eight million, six hundred ninety-five thousand, ninety-one".