61943412 has 24 divisors (see below), whose sum is σ = 144662112. Its totient is φ = 20629600.

The previous prime is 61943407. The next prime is 61943419. The reversal of 61943412 is 21434916.

It is a self number, because there is not a number n which added to its sum of digits gives 61943412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61943419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24487 + ... + 26897.

It is an arithmetic number, because the mean of its divisors is an integer number (6027588).

Almost surely, 2^61943412 is an apocalyptic number.

It is an amenable number.

61943412 is an abundant number, since it is smaller than the sum of its proper divisors (82718700).

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

61943412 is a wasteful number, since it uses less digits than its factorization.

61943412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559 (or 4557 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 61943412 is about 7870.4137121247. The cubic root of 61943412 is about 395.6687107828.

The spelling of 61943412 in words is "sixty-one million, nine hundred forty-three thousand, four hundred twelve".