67990620 has 24 divisors (see below), whose sum is σ = 190373904. Its totient is φ = 18130816.

The previous prime is 67990613. The next prime is 67990621. The reversal of 67990620 is 2609976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67990621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566529 + ... + 566648.

It is an arithmetic number, because the mean of its divisors is an integer number (7932246).

Almost surely, 2^67990620 is an apocalyptic number.

67990620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67990620 is an abundant number, since it is smaller than the sum of its proper divisors (122383284).

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

67990620 is a wasteful number, since it uses less digits than its factorization.

67990620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133189 (or 1133187 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 67990620 is about 8245.6424855799. The cubic root of 67990620 is about 408.1467417185.

The spelling of 67990620 in words is "sixty-seven million, nine hundred ninety thousand, six hundred twenty".