61396679 has 2 divisors, whose sum is σ = 61396680. Its totient is φ = 61396678.

The previous prime is 61396669. The next prime is 61396697. The reversal of 61396679 is 97669316.

It is a happy number.

Together with next prime (61396697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61396679 - 2⁴ = 61396663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61396609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30698339 + 30698340.

It is an arithmetic number, because the mean of its divisors is an integer number (30698340).

Almost surely, 2^61396679 is an apocalyptic number.

61396679 is a deficient number, since it is larger than the sum of its proper divisors (1).

61396679 is an equidigital number, since it uses as much as digits as its factorization.

61396679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 61396679 is about 7835.6032952160. The cubic root of 61396679 is about 394.5011680964.

The spelling of 61396679 in words is "sixty-one million, three hundred ninety-six thousand, six hundred seventy-nine".