61987652 has 12 divisors (see below), whose sum is σ = 114187920. Its totient is φ = 29362536.

The previous prime is 61987649. The next prime is 61987657. The reversal of 61987652 is 25678916.

It is not an unprimeable number, because it can be changed into a prime (61987657) 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, 407738 + ... + 407889.

It is an arithmetic number, because the mean of its divisors is an integer number (9515660).

Almost surely, 2^61987652 is an apocalyptic number.

It is an amenable number.

61987652 is a deficient number, since it is larger than the sum of its proper divisors (52200268).

61987652 is a wasteful number, since it uses less digits than its factorization.

61987652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815650 (or 815648 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 61987652 is about 7873.2237361833. The cubic root of 61987652 is about 395.7628839302.

The spelling of 61987652 in words is "sixty-one million, nine hundred eighty-seven thousand, six hundred fifty-two".