46778047 has 2 divisors, whose sum is σ = 46778048. Its totient is φ = 46778046.

The previous prime is 46778009. The next prime is 46778071. The reversal of 46778047 is 74087764.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46778047 is a prime.

It is a super-2 number, since 2×46778047² = 4376371362268418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 46777994 and 46778012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46778447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23389023 + 23389024.

It is an arithmetic number, because the mean of its divisors is an integer number (23389024).

Almost surely, 2^46778047 is an apocalyptic number.

46778047 is a deficient number, since it is larger than the sum of its proper divisors (1).

46778047 is an equidigital number, since it uses as much as digits as its factorization.

46778047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 46778047 is about 6839.4478578318. The cubic root of 46778047 is about 360.3136335747.

The spelling of 46778047 in words is "forty-six million, seven hundred seventy-eight thousand, forty-seven".