428954407 has 4 divisors (see below), whose sum is σ = 490233616. Its totient is φ = 367675200.

The previous prime is 428954401. The next prime is 428954411. The reversal of 428954407 is 704459824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428954407 - 2²⁷ = 294736679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428954401) 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, 30639594 + ... + 30639607.

It is an arithmetic number, because the mean of its divisors is an integer number (122558404).

Almost surely, 2^428954407 is an apocalyptic number.

428954407 is a deficient number, since it is larger than the sum of its proper divisors (61279209).

428954407 is an equidigital number, since it uses as much as digits as its factorization.

428954407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61279208.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 428954407 is about 20711.2145225721. The cubic root of 428954407 is about 754.1719541822.

The spelling of 428954407 in words is "four hundred twenty-eight million, nine hundred fifty-four thousand, four hundred seven".