61947097 has 2 divisors, whose sum is σ = 61947098. Its totient is φ = 61947096.

The previous prime is 61947091. The next prime is 61947113. The reversal of 61947097 is 79074916.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55890576 + 6056521 = 7476^2 + 2461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61947097 is a prime.

It is not a weakly prime, because it can be changed into another prime (61947091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30973548 + 30973549.

It is an arithmetic number, because the mean of its divisors is an integer number (30973549).

Almost surely, 2^61947097 is an apocalyptic number.

It is an amenable number.

61947097 is a deficient number, since it is larger than the sum of its proper divisors (1).

61947097 is an equidigital number, since it uses as much as digits as its factorization.

61947097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 61947097 is about 7870.6478132362. The cubic root of 61947097 is about 395.6765567088.

The spelling of 61947097 in words is "sixty-one million, nine hundred forty-seven thousand, ninety-seven".