61996982 has 4 divisors (see below), whose sum is σ = 92995476. Its totient is φ = 30998490.

The previous prime is 61996973. The next prime is 61996999. The reversal of 61996982 is 28969916.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61996982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15499244 + ... + 15499247.

It is an arithmetic number, because the mean of its divisors is an integer number (23248869).

Almost surely, 2^61996982 is an apocalyptic number.

61996982 is a deficient number, since it is larger than the sum of its proper divisors (30998494).

61996982 is a wasteful number, since it uses less digits than its factorization.

61996982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30998493.

The product of its digits is 419904, while the sum is 50.

The square root of 61996982 is about 7873.8162284879. The cubic root of 61996982 is about 395.7827388655.

The spelling of 61996982 in words is "sixty-one million, nine hundred ninety-six thousand, nine hundred eighty-two".