78270612 has 48 divisors (see below), whose sum is σ = 212671872. Its totient is φ = 21939840.

The previous prime is 78270589. The next prime is 78270631. The reversal of 78270612 is 21607287.

It is a super-3 number, since 3×78270612³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 4339 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (4430664).

Almost surely, 2^78270612 is an apocalyptic number.

It is an amenable number.

78270612 is an abundant number, since it is smaller than the sum of its proper divisors (134401260).

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

78270612 is a wasteful number, since it uses less digits than its factorization.

78270612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648 (or 17646 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 78270612 is about 8847.0679888876. The cubic root of 78270612 is about 427.7594143851.

Adding to 78270612 its reverse (21607287), we get a palindrome (99877899).

The spelling of 78270612 in words is "seventy-eight million, two hundred seventy thousand, six hundred twelve".