4072987 has 2 divisors, whose sum is σ = 4072988. Its totient is φ = 4072986.

The previous prime is 4072967. The next prime is 4073009. The reversal of 4072987 is 7892704.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4072987 - 2¹⁵ = 4040219 is a prime.

4072987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4072927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036493 + 2036494.

It is an arithmetic number, because the mean of its divisors is an integer number (2036494).

Almost surely, 2^4072987 is an apocalyptic number.

4072987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072987 is an equidigital number, since it uses as much as digits as its factorization.

4072987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 4072987 is about 2018.1642648704. The cubic root of 4072987 is about 159.6997886219.

The spelling of 4072987 in words is "four million, seventy-two thousand, nine hundred eighty-seven".