61380713 has 4 divisors (see below), whose sum is σ = 63360768. Its totient is φ = 59400660.

The previous prime is 61380703. The next prime is 61380749. The reversal of 61380713 is 31708316.

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 61380713 - 2¹⁸ = 61118569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61380703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989981 + ... + 990042.

It is an arithmetic number, because the mean of its divisors is an integer number (15840192).

Almost surely, 2^61380713 is an apocalyptic number.

It is an amenable number.

61380713 is a deficient number, since it is larger than the sum of its proper divisors (1980055).

61380713 is a wasteful number, since it uses less digits than its factorization.

61380713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980054.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 61380713 is about 7834.5844178233. The cubic root of 61380713 is about 394.4669688975.

The spelling of 61380713 in words is "sixty-one million, three hundred eighty thousand, seven hundred thirteen".