46780031 has 2 divisors, whose sum is σ = 46780032. Its totient is φ = 46780030.

The previous prime is 46779989. The next prime is 46780043. The reversal of 46780031 is 13008764.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46780031 is a prime.

It is a super-2 number, since 2×46780031² = 4376742600721922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 46779976 and 46780003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46780051) 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, 23390015 + 23390016.

It is an arithmetic number, because the mean of its divisors is an integer number (23390016).

Almost surely, 2^46780031 is an apocalyptic number.

46780031 is a deficient number, since it is larger than the sum of its proper divisors (1).

46780031 is an equidigital number, since it uses as much as digits as its factorization.

46780031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 46780031 is about 6839.5928972418. The cubic root of 46780031 is about 360.3187275037.

Adding to 46780031 its reverse (13008764), we get a palindrome (59788795).

The spelling of 46780031 in words is "forty-six million, seven hundred eighty thousand, thirty-one".