212697078 has 32 divisors (see below), whose sum is σ = 480072960. Its totient is φ = 62230560.

The previous prime is 212697059. The next prime is 212697083. The reversal of 212697078 is 870796212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53650 + ... + 57477.

It is an arithmetic number, because the mean of its divisors is an integer number (15002280).

Almost surely, 2^212697078 is an apocalyptic number.

212697078 is an abundant number, since it is smaller than the sum of its proper divisors (267375882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212697078 is a wasteful number, since it uses less digits than its factorization.

212697078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111172.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 212697078 is about 14584.1378901874. The cubic root of 212697078 is about 596.9260168302.

The spelling of 212697078 in words is "two hundred twelve million, six hundred ninety-seven thousand, seventy-eight".