36998887 has 2 divisors, whose sum is σ = 36998888. Its totient is φ = 36998886.

The previous prime is 36998861. The next prime is 36998891. The reversal of 36998887 is 78889963.

It is a strong prime.

It is an emirp because it is prime and its reverse (78889963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36998887 - 2¹⁵ = 36966119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36998837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18499443 + 18499444.

It is an arithmetic number, because the mean of its divisors is an integer number (18499444).

Almost surely, 2^36998887 is an apocalyptic number.

36998887 is a deficient number, since it is larger than the sum of its proper divisors (1).

36998887 is an equidigital number, since it uses as much as digits as its factorization.

36998887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 58.

The square root of 36998887 is about 6082.6710415738. The cubic root of 36998887 is about 333.2188439032.

The spelling of 36998887 in words is "thirty-six million, nine hundred ninety-eight thousand, eight hundred eighty-seven".