670003620 has 288 divisors, whose sum is σ = 2302325760. Its totient is φ = 144460800.

The previous prime is 670003583. The next prime is 670003657. The reversal of 670003620 is 26300076.

It is an interprime number because it is at equal distance from previous prime (670003583) and next prime (670003657).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2925666 + ... + 2925894.

Almost surely, 2^670003620 is an apocalyptic number.

670003620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670003620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151162880).

670003620 is an abundant number, since it is smaller than the sum of its proper divisors (1632322140).

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

670003620 is a wasteful number, since it uses less digits than its factorization.

670003620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 670003620 is about 25884.4281373957. The cubic root of 670003620 is about 875.0355882124.

Adding to 670003620 its reverse (26300076), we get a palindrome (696303696).

The spelling of 670003620 in words is "six hundred seventy million, three thousand, six hundred twenty".