61676213 has 2 divisors, whose sum is σ = 61676214. Its totient is φ = 61676212.

The previous prime is 61676183. The next prime is 61676239. The reversal of 61676213 is 31267616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 16826404 = 6697^2 + 4102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61676213 is a prime.

It is a Chen prime.

It is equal to p_3655571 and since 61676213 and 3655571 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61676213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61672213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30838106 + 30838107.

It is an arithmetic number, because the mean of its divisors is an integer number (30838107).

Almost surely, 2^61676213 is an apocalyptic number.

It is an amenable number.

61676213 is a deficient number, since it is larger than the sum of its proper divisors (1).

61676213 is an equidigital number, since it uses as much as digits as its factorization.

61676213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 61676213 is about 7853.4204649949. The cubic root of 61676213 is about 395.0989721548.

The spelling of 61676213 in words is "sixty-one million, six hundred seventy-six thousand, two hundred thirteen".