61353966 has 32 divisors (see below), whose sum is σ = 129353760. Its totient is φ = 19370624.

The previous prime is 61353961. The next prime is 61353967. The reversal of 61353966 is 66935316.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61353961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5896 + ... + 12548.

It is an arithmetic number, because the mean of its divisors is an integer number (4042305).

Almost surely, 2^61353966 is an apocalyptic number.

61353966 is an abundant number, since it is smaller than the sum of its proper divisors (67999794).

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

61353966 is a wasteful number, since it uses less digits than its factorization.

61353966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740.

The product of its digits is 87480, while the sum is 39.

The square root of 61353966 is about 7832.8772491339. The cubic root of 61353966 is about 394.4096634867.

It can be divided in two parts, 6135 and 3966, that added together give a palindrome (10101).

The spelling of 61353966 in words is "sixty-one million, three hundred fifty-three thousand, nine hundred sixty-six".