61349677 has 2 divisors, whose sum is σ = 61349678. Its totient is φ = 61349676.

The previous prime is 61349657. The next prime is 61349681. The reversal of 61349677 is 77694316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59428681 + 1920996 = 7709^2 + 1386^2 .

It is a cyclic number.

It is not a de Polignac number, because 61349677 - 2¹⁹ = 60825389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61349647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30674838 + 30674839.

It is an arithmetic number, because the mean of its divisors is an integer number (30674839).

Almost surely, 2^61349677 is an apocalyptic number.

It is an amenable number.

61349677 is a deficient number, since it is larger than the sum of its proper divisors (1).

61349677 is an equidigital number, since it uses as much as digits as its factorization.

61349677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 61349677 is about 7832.6034624510. The cubic root of 61349677 is about 394.4004727608.

It can be divided in two parts, 61349 and 677, that added together give a palindrome (62026).

The spelling of 61349677 in words is "sixty-one million, three hundred forty-nine thousand, six hundred seventy-seven".