67890836 has 12 divisors (see below), whose sum is σ = 127948212. Its totient is φ = 31334208.

The previous prime is 67890833. The next prime is 67890847. The reversal of 67890836 is 63809876.

It can be written as a sum of positive squares in 2 ways, for example, as 38514436 + 29376400 = 6206^2 + 5420^2 .

It is a super-2 number, since 2×67890836² = 9218331225557792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67890833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652745 + ... + 652848.

It is an arithmetic number, because the mean of its divisors is an integer number (10662351).

Almost surely, 2^67890836 is an apocalyptic number.

It is an amenable number.

67890836 is a deficient number, since it is larger than the sum of its proper divisors (60057376).

67890836 is a wasteful number, since it uses less digits than its factorization.

67890836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305610 (or 1305608 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 67890836 is about 8239.5895528843. The cubic root of 67890836 is about 407.9469766414.

The spelling of 67890836 in words is "sixty-seven million, eight hundred ninety thousand, eight hundred thirty-six".