61796687 has 2 divisors, whose sum is σ = 61796688. Its totient is φ = 61796686.

The previous prime is 61796641. The next prime is 61796689. The reversal of 61796687 is 78669716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61796687 - 2⁸ = 61796431 is a prime.

Together with 61796689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61796689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30898343 + 30898344.

It is an arithmetic number, because the mean of its divisors is an integer number (30898344).

Almost surely, 2^61796687 is an apocalyptic number.

61796687 is a deficient number, since it is larger than the sum of its proper divisors (1).

61796687 is an equidigital number, since it uses as much as digits as its factorization.

61796687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 61796687 is about 7861.0868841401. The cubic root of 61796687 is about 395.3560577343.

The spelling of 61796687 in words is "sixty-one million, seven hundred ninety-six thousand, six hundred eighty-seven".