61887633 has 8 divisors (see below), whose sum is σ = 87370848. Its totient is φ = 38831424.

The previous prime is 61887583. The next prime is 61887659. The reversal of 61887633 is 33678816.

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

It is not a de Polignac number, because 61887633 - 2⁹ = 61887121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61887233) 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, 606691 + ... + 606792.

It is an arithmetic number, because the mean of its divisors is an integer number (10921356).

Almost surely, 2^61887633 is an apocalyptic number.

It is an amenable number.

61887633 is a deficient number, since it is larger than the sum of its proper divisors (25483215).

61887633 is a wasteful number, since it uses less digits than its factorization.

61887633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213503.

The product of its digits is 145152, while the sum is 42.

The square root of 61887633 is about 7866.8693264856. The cubic root of 61887633 is about 395.5499107782.

The spelling of 61887633 in words is "sixty-one million, eight hundred eighty-seven thousand, six hundred thirty-three".