670894424 has 8 divisors (see below), whose sum is σ = 1257927060. Its totient is φ = 335447208.

The previous prime is 670894421. The next prime is 670894457. The reversal of 670894424 is 424498076.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670894421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41930894 + ... + 41930909.

Almost surely, 2^670894424 is an apocalyptic number.

It is an amenable number.

670894424 is a deficient number, since it is larger than the sum of its proper divisors (587032636).

670894424 is a wasteful number, since it uses less digits than its factorization.

670894424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83861809 (or 83861805 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 670894424 is about 25901.6297556737. The cubic root of 670894424 is about 875.4232179598.

The spelling of 670894424 in words is "six hundred seventy million, eight hundred ninety-four thousand, four hundred twenty-four".