61347089 has 2 divisors, whose sum is σ = 61347090. Its totient is φ = 61347088.

The previous prime is 61347071. The next prime is 61347103. The reversal of 61347089 is 98074316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 11785489 = 7040^2 + 3433^2 .

It is a cyclic number.

It is not a de Polignac number, because 61347089 - 2⁸ = 61346833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61347289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30673544 + 30673545.

It is an arithmetic number, because the mean of its divisors is an integer number (30673545).

Almost surely, 2^61347089 is an apocalyptic number.

It is an amenable number.

61347089 is a deficient number, since it is larger than the sum of its proper divisors (1).

61347089 is an equidigital number, since it uses as much as digits as its factorization.

61347089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 61347089 is about 7832.4382538262. The cubic root of 61347089 is about 394.3949268322.

The spelling of 61347089 in words is "sixty-one million, three hundred forty-seven thousand, eighty-nine".