61600913 has 4 divisors (see below), whose sum is σ = 67201008. Its totient is φ = 56000820.

The previous prime is 61600883. The next prime is 61600963. The reversal of 61600913 is 31900616.

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 61600913 - 2⁶ = 61600849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61600963) 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, 2800031 + ... + 2800052.

It is an arithmetic number, because the mean of its divisors is an integer number (16800252).

Almost surely, 2^61600913 is an apocalyptic number.

It is an amenable number.

61600913 is a deficient number, since it is larger than the sum of its proper divisors (5600095).

61600913 is a wasteful number, since it uses less digits than its factorization.

61600913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600094.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 61600913 is about 7848.6249114096. The cubic root of 61600913 is about 394.9381156056.

The spelling of 61600913 in words is "sixty-one million, six hundred thousand, nine hundred thirteen".