61713732 has 12 divisors (see below), whose sum is σ = 143998736. Its totient is φ = 20571240.

The previous prime is 61713731. The next prime is 61713763. The reversal of 61713732 is 23731716.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 61713732.

It is not an unprimeable number, because it can be changed into a prime (61713731) 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, 2571394 + ... + 2571417.

Almost surely, 2^61713732 is an apocalyptic number.

It is an amenable number.

61713732 is an abundant number, since it is smaller than the sum of its proper divisors (82285004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61713732 is a wasteful number, since it uses less digits than its factorization.

61713732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142818 (or 5142816 counting only the distinct ones).

The product of its digits is 5292, while the sum is 30.

The square root of 61713732 is about 7855.8088062274. The cubic root of 61713732 is about 395.1790717198.

The spelling of 61713732 in words is "sixty-one million, seven hundred thirteen thousand, seven hundred thirty-two".