61713913 has 4 divisors (see below), whose sum is σ = 62006608. Its totient is φ = 61421220.

The previous prime is 61713857. The next prime is 61713917. The reversal of 61713913 is 31931716.

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 61713913 - 2¹⁷ = 61582841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61713917) 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, 146031 + ... + 146452.

It is an arithmetic number, because the mean of its divisors is an integer number (15501652).

Almost surely, 2^61713913 is an apocalyptic number.

It is an amenable number.

61713913 is a deficient number, since it is larger than the sum of its proper divisors (292695).

61713913 is a wasteful number, since it uses less digits than its factorization.

61713913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292694.

The product of its digits is 3402, while the sum is 31.

The square root of 61713913 is about 7855.8203263568. The cubic root of 61713913 is about 395.1794580592.

It can be divided in two parts, 61713 and 913, that added together give a palindrome (62626).

The spelling of 61713913 in words is "sixty-one million, seven hundred thirteen thousand, nine hundred thirteen".