61882639 has 24 divisors (see below), whose sum is σ = 81619440. Its totient is φ = 46376064.

The previous prime is 61882573. The next prime is 61882651. The reversal of 61882639 is 93628816.

It is not a de Polignac number, because 61882639 - 2⁷ = 61882511 is a prime.

It is a super-2 number, since 2×61882639² = 7658922019208642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61882595 and 61882604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61882039) 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, 9547 + ... + 14659.

It is an arithmetic number, because the mean of its divisors is an integer number (3400810).

Almost surely, 2^61882639 is an apocalyptic number.

61882639 is a deficient number, since it is larger than the sum of its proper divisors (19736801).

61882639 is a wasteful number, since it uses less digits than its factorization.

61882639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5159 (or 5152 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 61882639 is about 7866.5519130048. The cubic root of 61882639 is about 395.5392709067.

The spelling of 61882639 in words is "sixty-one million, eight hundred eighty-two thousand, six hundred thirty-nine".