1802249987 has 2 divisors, whose sum is σ = 1802249988. Its totient is φ = 1802249986.

The previous prime is 1802249971. The next prime is 1802250017. The reversal of 1802249987 is 7899422081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1802249987 - 2⁴ = 1802249971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1802249957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901124993 + 901124994.

It is an arithmetic number, because the mean of its divisors is an integer number (901124994).

Almost surely, 2^1802249987 is an apocalyptic number.

1802249987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802249987 is an equidigital number, since it uses as much as digits as its factorization.

1802249987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1802249987 is about 42452.9149411439. The cubic root of 1802249987 is about 1216.9470353139.

The spelling of 1802249987 in words is "one billion, eight hundred two million, two hundred forty-nine thousand, nine hundred eighty-seven".