61963841 has 2 divisors, whose sum is σ = 61963842. Its totient is φ = 61963840.

The previous prime is 61963829. The next prime is 61963843. The reversal of 61963841 is 14836916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 7263025 = 7396^2 + 2695^2 .

It is a cyclic number.

It is not a de Polignac number, because 61963841 - 2⁶ = 61963777 is a prime.

Together with 61963843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61963795 and 61963804.

It is not a weakly prime, because it can be changed into another prime (61963843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30981920 + 30981921.

It is an arithmetic number, because the mean of its divisors is an integer number (30981921).

Almost surely, 2^61963841 is an apocalyptic number.

It is an amenable number.

61963841 is a deficient number, since it is larger than the sum of its proper divisors (1).

61963841 is an equidigital number, since it uses as much as digits as its factorization.

61963841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 61963841 is about 7871.7114403413. The cubic root of 61963841 is about 395.7122033157.

The spelling of 61963841 in words is "sixty-one million, nine hundred sixty-three thousand, eight hundred forty-one".