46243987 has 2 divisors, whose sum is σ = 46243988. Its totient is φ = 46243986.

The previous prime is 46243957. The next prime is 46243991. The reversal of 46243987 is 78934264.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46243987 is a prime.

It is not a weakly prime, because it can be changed into another prime (46243907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23121993 + 23121994.

It is an arithmetic number, because the mean of its divisors is an integer number (23121994).

Almost surely, 2^46243987 is an apocalyptic number.

46243987 is a deficient number, since it is larger than the sum of its proper divisors (1).

46243987 is an equidigital number, since it uses as much as digits as its factorization.

46243987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 46243987 is about 6800.2931554456. The cubic root of 46243987 is about 358.9371610179.

The spelling of 46243987 in words is "forty-six million, two hundred forty-three thousand, nine hundred eighty-seven".