61616472 has 16 divisors (see below), whose sum is σ = 154041240. Its totient is φ = 20538816.

The previous prime is 61616419. The next prime is 61616479. The reversal of 61616472 is 27461616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61616479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283653 + ... + 1283700.

Almost surely, 2^61616472 is an apocalyptic number.

It is an amenable number.

61616472 is an abundant number, since it is smaller than the sum of its proper divisors (92424768).

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

61616472 is a wasteful number, since it uses less digits than its factorization.

61616472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567362 (or 2567358 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 61616472 is about 7849.6160415653. The cubic root of 61616472 is about 394.9713636239.

The spelling of 61616472 in words is "sixty-one million, six hundred sixteen thousand, four hundred seventy-two".