801212087 has 16 divisors (see below), whose sum is σ = 902664000. Its totient is φ = 706024704.

The previous prime is 801212051. The next prime is 801212099. The reversal of 801212087 is 780212108.

It is a cyclic number.

It is not a de Polignac number, because 801212087 - 2¹⁶ = 801146551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801212047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21614 + ... + 45492.

It is an arithmetic number, because the mean of its divisors is an integer number (56416500).

Almost surely, 2^801212087 is an apocalyptic number.

801212087 is a deficient number, since it is larger than the sum of its proper divisors (101451913).

801212087 is a wasteful number, since it uses less digits than its factorization.

801212087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24010.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 801212087 is about 28305.6900110208. The cubic root of 801212087 is about 928.7863642671.

The spelling of 801212087 in words is "eight hundred one million, two hundred twelve thousand, eighty-seven".