423970986 has 8 divisors (see below), whose sum is σ = 847941984. Its totient is φ = 141323660.

The previous prime is 423970979. The next prime is 423970993. The reversal of 423970986 is 689079324.

It is an interprime number because it is at equal distance from previous prime (423970979) and next prime (423970993).

It is a sphenic number, since it is the product of 3 distinct primes.

423970986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35330910 + ... + 35330921.

It is an arithmetic number, because the mean of its divisors is an integer number (105992748).

Almost surely, 2^423970986 is an apocalyptic number.

423970986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

423970986 is a wasteful number, since it uses less digits than its factorization.

423970986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70661836.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 423970986 is about 20590.5557477208. Note that the first 3 decimals coincide. The cubic root of 423970986 is about 751.2400144667.

The spelling of 423970986 in words is "four hundred twenty-three million, nine hundred seventy thousand, nine hundred eighty-six".