61887116 has 6 divisors (see below), whose sum is σ = 108302460. Its totient is φ = 30943556.

The previous prime is 61887107. The next prime is 61887121. The reversal of 61887116 is 61178816.

It is a self number, because there is not a number n which added to its sum of digits gives 61887116.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7735886 + ... + 7735893.

It is an arithmetic number, because the mean of its divisors is an integer number (18050410).

Almost surely, 2^61887116 is an apocalyptic number.

It is an amenable number.

61887116 is a deficient number, since it is larger than the sum of its proper divisors (46415344).

61887116 is a wasteful number, since it uses less digits than its factorization.

61887116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15471783 (or 15471781 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 61887116 is about 7866.8364670940. The cubic root of 61887116 is about 395.5488093202.

The spelling of 61887116 in words is "sixty-one million, eight hundred eighty-seven thousand, one hundred sixteen".