61064893 has 2 divisors, whose sum is σ = 61064894. Its totient is φ = 61064892.

The previous prime is 61064881. The next prime is 61064921. The reversal of 61064893 is 39846016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60886809 + 178084 = 7803^2 + 422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61064893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61064813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30532446 + 30532447.

It is an arithmetic number, because the mean of its divisors is an integer number (30532447).

Almost surely, 2^61064893 is an apocalyptic number.

It is an amenable number.

61064893 is a deficient number, since it is larger than the sum of its proper divisors (1).

61064893 is an equidigital number, since it uses as much as digits as its factorization.

61064893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 61064893 is about 7814.4029202492. The cubic root of 61064893 is about 393.7892596111.

The spelling of 61064893 in words is "sixty-one million, sixty-four thousand, eight hundred ninety-three".