61424661 has 8 divisors (see below), whose sum is σ = 82651360. Its totient is φ = 40573872.

The previous prime is 61424659. The next prime is 61424669. The reversal of 61424661 is 16642416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61424661 - 2¹ = 61424659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61424669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93595 + ... + 94248.

It is an arithmetic number, because the mean of its divisors is an integer number (10331420).

Almost surely, 2^61424661 is an apocalyptic number.

It is an amenable number.

61424661 is a deficient number, since it is larger than the sum of its proper divisors (21226699).

61424661 is a wasteful number, since it uses less digits than its factorization.

61424661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187955.

The product of its digits is 6912, while the sum is 30.

The square root of 61424661 is about 7837.3886594962. The cubic root of 61424661 is about 394.5610912891.

The spelling of 61424661 in words is "sixty-one million, four hundred twenty-four thousand, six hundred sixty-one".