485428957 has 4 divisors (see below), whose sum is σ = 522769660. Its totient is φ = 448088256.

The previous prime is 485428919. The next prime is 485428973. The reversal of 485428957 is 759824584.

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

It can be written as a sum of positive squares in 2 ways, for example, as 178863876 + 306565081 = 13374^2 + 17509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485428957 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 (485428987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18670332 + ... + 18670357.

It is an arithmetic number, because the mean of its divisors is an integer number (130692415).

Almost surely, 2^485428957 is an apocalyptic number.

It is an amenable number.

485428957 is a deficient number, since it is larger than the sum of its proper divisors (37340703).

485428957 is a wasteful number, since it uses less digits than its factorization.

485428957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37340702.

The product of its digits is 3225600, while the sum is 52.

The square root of 485428957 is about 22032.4523600983. The cubic root of 485428957 is about 785.9143642390.

The spelling of 485428957 in words is "four hundred eighty-five million, four hundred twenty-eight thousand, nine hundred fifty-seven".