46393987 has 2 divisors, whose sum is σ = 46393988. Its totient is φ = 46393986.

The previous prime is 46393979. The next prime is 46393993. The reversal of 46393987 is 78939364.

46393987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 46393987 - 2³ = 46393979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 46393987.

It is not a weakly prime, because it can be changed into another prime (46393927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23196993 + 23196994.

It is an arithmetic number, because the mean of its divisors is an integer number (23196994).

Almost surely, 2^46393987 is an apocalyptic number.

46393987 is a deficient number, since it is larger than the sum of its proper divisors (1).

46393987 is an equidigital number, since it uses as much as digits as its factorization.

46393987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 46393987 is about 6811.3131626728. The cubic root of 46393987 is about 359.3248327905.

The spelling of 46393987 in words is "forty-six million, three hundred ninety-three thousand, nine hundred eighty-seven".