260400047 has 2 divisors, whose sum is σ = 260400048. Its totient is φ = 260400046.

The previous prime is 260400029. The next prime is 260400059. The reversal of 260400047 is 740004062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260400047 - 2⁶ = 260399983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 260399995 and 260400031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260400247) 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, 130200023 + 130200024.

It is an arithmetic number, because the mean of its divisors is an integer number (130200024).

Almost surely, 2^260400047 is an apocalyptic number.

260400047 is a deficient number, since it is larger than the sum of its proper divisors (1).

260400047 is an equidigital number, since it uses as much as digits as its factorization.

260400047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 260400047 is about 16136.9156594437. The cubic root of 260400047 is about 638.5776085111.

The spelling of 260400047 in words is "two hundred sixty million, four hundred thousand, forty-seven".