67288990 has 32 divisors (see below), whose sum is σ = 125854560. Its totient is φ = 25872000.

The previous prime is 67288987. The next prime is 67288999. The reversal of 67288990 is 9988276.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67288999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95640 + ... + 96340.

It is an arithmetic number, because the mean of its divisors is an integer number (3932955).

Almost surely, 2^67288990 is an apocalyptic number.

67288990 is a deficient number, since it is larger than the sum of its proper divisors (58565570).

67288990 is a wasteful number, since it uses less digits than its factorization.

67288990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 67288990 is about 8202.9866512143. The cubic root of 67288990 is about 406.7379260895.

The spelling of 67288990 in words is "sixty-seven million, two hundred eighty-eight thousand, nine hundred ninety".