61976 has 16 divisors (see below), whose sum is σ = 119040. Its totient is φ = 30240.

The previous prime is 61967. The next prime is 61979. The reversal of 61976 is 67916.

61976 = T₁₁ + T₁₂ + ... + T₇₁.

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425 + ... + 551.

It is an arithmetic number, because the mean of its divisors is an integer number (7440).

2⁶¹⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

61976 is a deficient number, since it is larger than the sum of its proper divisors (57064).

61976 is a wasteful number, since it uses less digits than its factorization.

61976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 190 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 61976 is about 248.9497941353. The cubic root of 61976 is about 39.5738084808.

It can be divided in two parts, 61 and 976, that multiplied together give a square (59536 = 244²).

The spelling of 61976 in words is "sixty-one thousand, nine hundred seventy-six".