61406677 has 2 divisors, whose sum is σ = 61406678. Its totient is φ = 61406676.

The previous prime is 61406627. The next prime is 61406699. The reversal of 61406677 is 77660416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51926436 + 9480241 = 7206^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 61406677 - 2⁷ = 61406549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61406627) 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, 30703338 + 30703339.

It is an arithmetic number, because the mean of its divisors is an integer number (30703339).

Almost surely, 2^61406677 is an apocalyptic number.

It is an amenable number.

61406677 is a deficient number, since it is larger than the sum of its proper divisors (1).

61406677 is an equidigital number, since it uses as much as digits as its factorization.

61406677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 61406677 is about 7836.2412545812. The cubic root of 61406677 is about 394.5225808105.

The spelling of 61406677 in words is "sixty-one million, four hundred six thousand, six hundred seventy-seven".