61576393 has 2 divisors, whose sum is σ = 61576394. Its totient is φ = 61576392.

The previous prime is 61576391. The next prime is 61576421. The reversal of 61576393 is 39367516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55830784 + 5745609 = 7472^2 + 2397^2 .

It is a cyclic number.

It is not a de Polignac number, because 61576393 - 2¹ = 61576391 is a prime.

Together with 61576391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61576391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30788196 + 30788197.

It is an arithmetic number, because the mean of its divisors is an integer number (30788197).

Almost surely, 2^61576393 is an apocalyptic number.

It is an amenable number.

61576393 is a deficient number, since it is larger than the sum of its proper divisors (1).

61576393 is an equidigital number, since it uses as much as digits as its factorization.

61576393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 61576393 is about 7847.0626988702. The cubic root of 61576393 is about 394.8857074659.

The spelling of 61576393 in words is "sixty-one million, five hundred seventy-six thousand, three hundred ninety-three".