61567696 has 20 divisors (see below), whose sum is σ = 123401700. Its totient is φ = 29722112.

The previous prime is 61567679. The next prime is 61567699. The reversal of 61567696 is 69676516.

It can be written as a sum of positive squares in 2 ways, for example, as 13957696 + 47610000 = 3736^2 + 6900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61567699) 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, 65881 + ... + 66808.

It is an arithmetic number, because the mean of its divisors is an integer number (6170085).

Almost surely, 2^61567696 is an apocalyptic number.

It is an amenable number.

61567696 is an abundant number, since it is smaller than the sum of its proper divisors (61834004).

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

61567696 is a wasteful number, since it uses less digits than its factorization.

61567696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132726 (or 132720 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 61567696 is about 7846.5085229037. The cubic root of 61567696 is about 394.8671154778.

The spelling of 61567696 in words is "sixty-one million, five hundred sixty-seven thousand, six hundred ninety-six".