46906681 has 2 divisors, whose sum is σ = 46906682. Its totient is φ = 46906680.

The previous prime is 46906669. The next prime is 46906721. The reversal of 46906681 is 18660964.

It is an a-pointer prime, because the next prime (46906721) can be obtained adding 46906681 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25200400 + 21706281 = 5020^2 + 4659^2 .

It is a cyclic number.

It is not a de Polignac number, because 46906681 - 2¹¹ = 46904633 is a prime.

It is a super-2 number, since 2×46906681² = 4400473444871522, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (46906381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23453340 + 23453341.

It is an arithmetic number, because the mean of its divisors is an integer number (23453341).

Almost surely, 2^46906681 is an apocalyptic number.

It is an amenable number.

46906681 is a deficient number, since it is larger than the sum of its proper divisors (1).

46906681 is an equidigital number, since it uses as much as digits as its factorization.

46906681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 46906681 is about 6848.8452311320. The cubic root of 46906681 is about 360.6436043434.

The spelling of 46906681 in words is "forty-six million, nine hundred six thousand, six hundred eighty-one".