61426837 has 2 divisors, whose sum is σ = 61426838. Its totient is φ = 61426836.

The previous prime is 61426819. The next prime is 61426853. The reversal of 61426837 is 73862416.

61426837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57062916 + 4363921 = 7554^2 + 2089^2 .

It is a cyclic number.

It is not a de Polignac number, because 61426837 - 2²³ = 53038229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61426796 and 61426805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61426877) 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, 30713418 + 30713419.

It is an arithmetic number, because the mean of its divisors is an integer number (30713419).

Almost surely, 2^61426837 is an apocalyptic number.

It is an amenable number.

61426837 is a deficient number, since it is larger than the sum of its proper divisors (1).

61426837 is an equidigital number, since it uses as much as digits as its factorization.

61426837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 61426837 is about 7837.5274800156. The cubic root of 61426837 is about 394.5657504101.

The spelling of 61426837 in words is "sixty-one million, four hundred twenty-six thousand, eight hundred thirty-seven".