61605412 has 24 divisors (see below), whose sum is σ = 120349152. Its totient is φ = 27350400.

The previous prime is 61605409. The next prime is 61605413. The reversal of 61605412 is 21450616.

61605412 is a modest number, since divided by 5412 gives 616 as remainder.

It is not an unprimeable number, because it can be changed into a prime (61605413) 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, 14389 + ... + 18172.

It is an arithmetic number, because the mean of its divisors is an integer number (5014548).

Almost surely, 2^61605412 is an apocalyptic number.

It is an amenable number.

61605412 is a deficient number, since it is larger than the sum of its proper divisors (58743740).

61605412 is a wasteful number, since it uses less digits than its factorization.

61605412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32619 (or 32617 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 61605412 is about 7848.9115168920. The cubic root of 61605412 is about 394.9477300914.

The spelling of 61605412 in words is "sixty-one million, six hundred five thousand, four hundred twelve".