601377691 has 2 divisors, whose sum is σ = 601377692. Its totient is φ = 601377690.

The previous prime is 601377653. The next prime is 601377701. The reversal of 601377691 is 196773106.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 601377691 - 2²⁵ = 567823259 is a prime.

It is not a weakly prime, because it can be changed into another prime (601377631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300688845 + 300688846.

It is an arithmetic number, because the mean of its divisors is an integer number (300688846).

Almost surely, 2^601377691 is an apocalyptic number.

601377691 is a deficient number, since it is larger than the sum of its proper divisors (1).

601377691 is an equidigital number, since it uses as much as digits as its factorization.

601377691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 601377691 is about 24523.0033030214. The cubic root of 601377691 is about 844.0777216111.

The spelling of 601377691 in words is "six hundred one million, three hundred seventy-seven thousand, six hundred ninety-one".