67820912 has 10 divisors (see below), whose sum is σ = 131403048. Its totient is φ = 33910448.

The previous prime is 67820903. The next prime is 67820923. The reversal of 67820912 is 21902876.

It is a happy number.

It is a super-2 number, since 2×67820912² = 9199352209023488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119388 + ... + 2119419.

Almost surely, 2^67820912 is an apocalyptic number.

It is an amenable number.

67820912 is a deficient number, since it is larger than the sum of its proper divisors (63582136).

67820912 is a wasteful number, since it uses less digits than its factorization.

67820912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238815 (or 4238809 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 67820912 is about 8235.3452872360. The cubic root of 67820912 is about 407.8068738683.

The spelling of 67820912 in words is "sixty-seven million, eight hundred twenty thousand, nine hundred twelve".