67816990 has 8 divisors (see below), whose sum is σ = 122070600. Its totient is φ = 27126792.

The previous prime is 67816979. The next prime is 67817003. The reversal of 67816990 is 9961876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67816990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390840 + ... + 3390859.

It is an arithmetic number, because the mean of its divisors is an integer number (15258825).

Almost surely, 2^67816990 is an apocalyptic number.

67816990 is a deficient number, since it is larger than the sum of its proper divisors (54253610).

67816990 is a wasteful number, since it uses less digits than its factorization.

67816990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781706.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 67816990 is about 8235.1071638443. The cubic root of 67816990 is about 407.7990127266.

The spelling of 67816990 in words is "sixty-seven million, eight hundred sixteen thousand, nine hundred ninety".