61698107 has 2 divisors, whose sum is σ = 61698108. Its totient is φ = 61698106.

The previous prime is 61698103. The next prime is 61698127. The reversal of 61698107 is 70189616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61698107 - 2² = 61698103 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61698103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30849053 + 30849054.

It is an arithmetic number, because the mean of its divisors is an integer number (30849054).

Almost surely, 2^61698107 is an apocalyptic number.

61698107 is a deficient number, since it is larger than the sum of its proper divisors (1).

61698107 is an equidigital number, since it uses as much as digits as its factorization.

61698107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 61698107 is about 7854.8142562380. The cubic root of 61698107 is about 395.1457177483.

The spelling of 61698107 in words is "sixty-one million, six hundred ninety-eight thousand, one hundred seven".