212078007 has 12 divisors (see below), whose sum is σ = 317681000. Its totient is φ = 141385176.

The previous prime is 212078003. The next prime is 212078023. The reversal of 212078007 is 700870212.

212078007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212078007 - 2² = 212078003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212078003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436132 + ... + 436617.

Almost surely, 2^212078007 is an apocalyptic number.

212078007 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

212078007 is a deficient number, since it is larger than the sum of its proper divisors (105602993).

212078007 is an frugal number, since it uses more digits than its factorization.

212078007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872764 (or 872752 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 212078007 is about 14562.8983035658. The cubic root of 212078007 is about 596.3463212136.

The spelling of 212078007 in words is "two hundred twelve million, seventy-eight thousand, seven".