212902887 has 8 divisors (see below), whose sum is σ = 283937920. Its totient is φ = 141901560.

The previous prime is 212902861. The next prime is 212902889. The reversal of 212902887 is 788209212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212902887 - 2⁷ = 212902759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212902889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20664 + ... + 29202.

It is an arithmetic number, because the mean of its divisors is an integer number (35492240).

Almost surely, 2^212902887 is an apocalyptic number.

212902887 is a deficient number, since it is larger than the sum of its proper divisors (71035033).

212902887 is an equidigital number, since it uses as much as digits as its factorization.

212902887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16853.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 212902887 is about 14591.1921034575. The cubic root of 212902887 is about 597.1184863967.

The spelling of 212902887 in words is "two hundred twelve million, nine hundred two thousand, eight hundred eighty-seven".