67990630 has 16 divisors (see below), whose sum is σ = 122477040. Its totient is φ = 27175392.

The previous prime is 67990621. The next prime is 67990649. The reversal of 67990630 is 3609976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24241 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (7654815).

Almost surely, 2^67990630 is an apocalyptic number.

67990630 is a deficient number, since it is larger than the sum of its proper divisors (54486410).

67990630 is a wasteful number, since it uses less digits than its factorization.

67990630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5223.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 67990630 is about 8245.6430919607. The cubic root of 67990630 is about 408.1467617285.

The spelling of 67990630 in words is "sixty-seven million, nine hundred ninety thousand, six hundred thirty".