60931691 has 2 divisors, whose sum is σ = 60931692. Its totient is φ = 60931690.

The previous prime is 60931667. The next prime is 60931721. The reversal of 60931691 is 19613906.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60931691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60931631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30465845 + 30465846.

It is an arithmetic number, because the mean of its divisors is an integer number (30465846).

Almost surely, 2^60931691 is an apocalyptic number.

60931691 is a deficient number, since it is larger than the sum of its proper divisors (1).

60931691 is an equidigital number, since it uses as much as digits as its factorization.

60931691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 60931691 is about 7805.8754153522. The cubic root of 60931691 is about 393.5027245282.

The spelling of 60931691 in words is "sixty million, nine hundred thirty-one thousand, six hundred ninety-one".