46640287 has 2 divisors, whose sum is σ = 46640288. Its totient is φ = 46640286.

The previous prime is 46640263. The next prime is 46640303. The reversal of 46640287 is 78204664.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 46640287 - 2¹¹ = 46638239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46640887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320143 + 23320144.

It is an arithmetic number, because the mean of its divisors is an integer number (23320144).

Almost surely, 2^46640287 is an apocalyptic number.

46640287 is a deficient number, since it is larger than the sum of its proper divisors (1).

46640287 is an equidigital number, since it uses as much as digits as its factorization.

46640287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 46640287 is about 6829.3694438067. The cubic root of 46640287 is about 359.9595813676.

It can be divided in two parts, 466402 and 87, that added together give a square (466489 = 683²).

The spelling of 46640287 in words is "forty-six million, six hundred forty thousand, two hundred eighty-seven".