61338427 has 2 divisors, whose sum is σ = 61338428. Its totient is φ = 61338426.

The previous prime is 61338421. The next prime is 61338443. The reversal of 61338427 is 72483316.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61338427 is a prime.

It is equal to p_3636754 and since 61338427 and 3636754 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 61338392 and 61338401.

It is not a weakly prime, because it can be changed into another prime (61338421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30669213 + 30669214.

It is an arithmetic number, because the mean of its divisors is an integer number (30669214).

Almost surely, 2^61338427 is an apocalyptic number.

61338427 is a deficient number, since it is larger than the sum of its proper divisors (1).

61338427 is an equidigital number, since it uses as much as digits as its factorization.

61338427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 61338427 is about 7831.8852775050. The cubic root of 61338427 is about 394.3763635517.

The spelling of 61338427 in words is "sixty-one million, three hundred thirty-eight thousand, four hundred twenty-seven".