60811691 has 2 divisors, whose sum is σ = 60811692. Its totient is φ = 60811690.

The previous prime is 60811657. The next prime is 60811759. The reversal of 60811691 is 19611806.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60811691 - 2⁶ = 60811627 is a prime.

It is not a weakly prime, because it can be changed into another prime (60811391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30405845 + 30405846.

It is an arithmetic number, because the mean of its divisors is an integer number (30405846).

Almost surely, 2^60811691 is an apocalyptic number.

60811691 is a deficient number, since it is larger than the sum of its proper divisors (1).

60811691 is an equidigital number, since it uses as much as digits as its factorization.

60811691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 60811691 is about 7798.1851093700. The cubic root of 60811691 is about 393.2442309102.

The spelling of 60811691 in words is "sixty million, eight hundred eleven thousand, six hundred ninety-one".