61361393 has 4 divisors (see below), whose sum is σ = 64590960. Its totient is φ = 58131828.

The previous prime is 61361389. The next prime is 61361407. The reversal of 61361393 is 39316316.

61361393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61361393 - 2² = 61361389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61361383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614755 + ... + 1614792.

It is an arithmetic number, because the mean of its divisors is an integer number (16147740).

Almost surely, 2^61361393 is an apocalyptic number.

It is an amenable number.

61361393 is a deficient number, since it is larger than the sum of its proper divisors (3229567).

61361393 is a wasteful number, since it uses less digits than its factorization.

61361393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229566.

The product of its digits is 8748, while the sum is 32.

The square root of 61361393 is about 7833.3513262205. The cubic root of 61361393 is about 394.4255774940.

The spelling of 61361393 in words is "sixty-one million, three hundred sixty-one thousand, three hundred ninety-three".