61887801 has 8 divisors (see below), whose sum is σ = 82620864. Its totient is φ = 41206640.

The previous prime is 61887799. The next prime is 61887817. The reversal of 61887801 is 10878816.

61887801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61887801 - 2¹ = 61887799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61887801.

It is not an unprimeable number, because it can be changed into a prime (61887101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10101 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (10327608).

Almost surely, 2^61887801 is an apocalyptic number.

It is an amenable number.

61887801 is a deficient number, since it is larger than the sum of its proper divisors (20733063).

61887801 is a wasteful number, since it uses less digits than its factorization.

61887801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25951.

The product of its (nonzero) digits is 21504, while the sum is 39.

The square root of 61887801 is about 7866.8800041694. The cubic root of 61887801 is about 395.5502686974.

The spelling of 61887801 in words is "sixty-one million, eight hundred eighty-seven thousand, eight hundred one".