428393307 has 8 divisors (see below), whose sum is σ = 590887440. Its totient is φ = 275747360.

The previous prime is 428393299. The next prime is 428393347. The reversal of 428393307 is 703393824.

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

It is a cyclic number.

It is not a de Polignac number, because 428393307 - 2³ = 428393299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428393347) 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, 2461944 + ... + 2462117.

It is an arithmetic number, because the mean of its divisors is an integer number (73860930).

Almost surely, 2^428393307 is an apocalyptic number.

428393307 is a deficient number, since it is larger than the sum of its proper divisors (162494133).

428393307 is a wasteful number, since it uses less digits than its factorization.

428393307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924093.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 428393307 is about 20697.6642885133. The cubic root of 428393307 is about 753.8429755307.

The spelling of 428393307 in words is "four hundred twenty-eight million, three hundred ninety-three thousand, three hundred seven".