61409884 has 12 divisors (see below), whose sum is σ = 110934208. Its totient is φ = 29714400.

The previous prime is 61409879. The next prime is 61409917. The reversal of 61409884 is 48890416.

61409884 is nontrivially palindromic in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247497 + ... + 247744.

Almost surely, 2^61409884 is an apocalyptic number.

It is an amenable number.

61409884 is a deficient number, since it is larger than the sum of its proper divisors (49524324).

61409884 is a wasteful number, since it uses less digits than its factorization.

61409884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495276 (or 495274 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 61409884 is about 7836.4458780751. The cubic root of 61409884 is about 394.5294487492.

The spelling of 61409884 in words is "sixty-one million, four hundred nine thousand, eight hundred eighty-four".