428265965 has 8 divisors (see below), whose sum is σ = 521157888. Its totient is φ = 337786960.

The previous prime is 428265949. The next prime is 428265967. The reversal of 428265965 is 569562824.

It is a happy number.

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

It is not a de Polignac number, because 428265965 - 2⁴ = 428265949 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 (428265967) 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, 602837 + ... + 603546.

It is an arithmetic number, because the mean of its divisors is an integer number (65144736).

Almost surely, 2^428265965 is an apocalyptic number.

It is an amenable number.

428265965 is a deficient number, since it is larger than the sum of its proper divisors (92891923).

428265965 is a wasteful number, since it uses less digits than its factorization.

428265965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206459.

The product of its digits is 1036800, while the sum is 47.

The square root of 428265965 is about 20694.5878190410. The cubic root of 428265965 is about 753.7682736279.

The spelling of 428265965 in words is "four hundred twenty-eight million, two hundred sixty-five thousand, nine hundred sixty-five".