61959673 has 2 divisors, whose sum is σ = 61959674. Its totient is φ = 61959672.

The previous prime is 61959671. The next prime is 61959683. The reversal of 61959673 is 37695916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52243984 + 9715689 = 7228^2 + 3117^2 .

It is a cyclic number.

It is not a de Polignac number, because 61959673 - 2¹ = 61959671 is a prime.

Together with 61959671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61959671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30979836 + 30979837.

It is an arithmetic number, because the mean of its divisors is an integer number (30979837).

Almost surely, 2^61959673 is an apocalyptic number.

It is an amenable number.

61959673 is a deficient number, since it is larger than the sum of its proper divisors (1).

61959673 is an equidigital number, since it uses as much as digits as its factorization.

61959673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 46.

The square root of 61959673 is about 7871.4466904121. The cubic root of 61959673 is about 395.7033305848.

The spelling of 61959673 in words is "sixty-one million, nine hundred fifty-nine thousand, six hundred seventy-three".