61876881 has 24 divisors (see below), whose sum is σ = 97830720. Its totient is φ = 37375200.

The previous prime is 61876873. The next prime is 61876883. The reversal of 61876881 is 18867816.

It is not a de Polignac number, because 61876881 - 2³ = 61876873 is a prime.

It is a super-2 number, since 2×61876881² = 7657496804576322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61876883) 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 23 ways as a sum of consecutive naturals, for example, 34671 + ... + 36411.

It is an arithmetic number, because the mean of its divisors is an integer number (4076280).

Almost surely, 2^61876881 is an apocalyptic number.

It is an amenable number.

61876881 is a deficient number, since it is larger than the sum of its proper divisors (35953839).

61876881 is a wasteful number, since it uses less digits than its factorization.

61876881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117 (or 2114 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 61876881 is about 7866.1859245762. The cubic root of 61876881 is about 395.5270025990.

The spelling of 61876881 in words is "sixty-one million, eight hundred seventy-six thousand, eight hundred eighty-one".