67390988 has 12 divisors (see below), whose sum is σ = 134782032. Its totient is φ = 28881840.

The previous prime is 67390987. The next prime is 67390991. The reversal of 67390988 is 88909376.

67390988 is an admirable number.

It is a super-2 number, since 2×67390988² = 9083090527232288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67390987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203383 + ... + 1203438.

It is an arithmetic number, because the mean of its divisors is an integer number (11231836).

Almost surely, 2^67390988 is an apocalyptic number.

It is an amenable number.

67390988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67390988 is a wasteful number, since it uses less digits than its factorization.

67390988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406832 (or 2406830 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 67390988 is about 8209.2014227938. The cubic root of 67390988 is about 406.9433361703.

The spelling of 67390988 in words is "sixty-seven million, three hundred ninety thousand, nine hundred eighty-eight".