670428912 has 20 divisors (see below), whose sum is σ = 1731941480. Its totient is φ = 223476288.

The previous prime is 670428907. The next prime is 670428919. The reversal of 670428912 is 219824076.

It is a super-4 number, since 4×670428912⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670428919) 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, 6983587 + ... + 6983682.

It is an arithmetic number, because the mean of its divisors is an integer number (86597074).

Almost surely, 2^670428912 is an apocalyptic number.

It is an amenable number.

670428912 is an abundant number, since it is smaller than the sum of its proper divisors (1061512568).

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

670428912 is a wasteful number, since it uses less digits than its factorization.

670428912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13967280 (or 13967274 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 670428912 is about 25892.6420436386. The cubic root of 670428912 is about 875.2206951337.

The spelling of 670428912 in words is "six hundred seventy million, four hundred twenty-eight thousand, nine hundred twelve".