67904004 has 72 divisors (see below), whose sum is σ = 192362688. Its totient is φ = 18553920.

The previous prime is 67904003. The next prime is 67904021. The reversal of 67904004 is 40040976.

It is a super-2 number, since 2×67904004² = 9221907518464032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67904003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11014 + ... + 16034.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^67904004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67904004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96181344).

67904004 is an abundant number, since it is smaller than the sum of its proper divisors (124458684).

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

67904004 is a wasteful number, since it uses less digits than its factorization.

67904004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 67904004 is about 8240.3885830706. The cubic root of 67904004 is about 407.9733498548.

The spelling of 67904004 in words is "sixty-seven million, nine hundred four thousand, four".