46640819 has 2 divisors, whose sum is σ = 46640820. Its totient is φ = 46640818.

The previous prime is 46640813. The next prime is 46640837. The reversal of 46640819 is 91804664.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46640819 - 2¹⁶ = 46575283 is a prime.

It is a super-2 number, since 2×46640819² = 4350731993981522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (46640813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320409 + 23320410.

It is an arithmetic number, because the mean of its divisors is an integer number (23320410).

Almost surely, 2^46640819 is an apocalyptic number.

46640819 is a deficient number, since it is larger than the sum of its proper divisors (1).

46640819 is an equidigital number, since it uses as much as digits as its factorization.

46640819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 46640819 is about 6829.4083931187. The cubic root of 46640819 is about 359.9609499824.

The spelling of 46640819 in words is "forty-six million, six hundred forty thousand, eight hundred nineteen".