61962881 has 2 divisors, whose sum is σ = 61962882. Its totient is φ = 61962880.

The previous prime is 61962877. The next prime is 61962899. The reversal of 61962881 is 18826916.

61962881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53523856 + 8439025 = 7316^2 + 2905^2 .

It is a cyclic number.

It is not a de Polignac number, because 61962881 - 2² = 61962877 is a prime.

It is a super-2 number, since 2×61962881² = 7678797243640322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61962811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30981440 + 30981441.

It is an arithmetic number, because the mean of its divisors is an integer number (30981441).

Almost surely, 2^61962881 is an apocalyptic number.

It is an amenable number.

61962881 is a deficient number, since it is larger than the sum of its proper divisors (1).

61962881 is an equidigital number, since it uses as much as digits as its factorization.

61962881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 41.

The square root of 61962881 is about 7871.6504622601. The cubic root of 61962881 is about 395.7101597277.

The spelling of 61962881 in words is "sixty-one million, nine hundred sixty-two thousand, eight hundred eighty-one".