904428948793 has 4 divisors (see below), whose sum is σ = 905153072500. Its totient is φ = 903704825088.

The previous prime is 904428948769. The next prime is 904428948817. The reversal of 904428948793 is 397849824409.

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

It is an interprime number because it is at equal distance from previous prime (904428948769) and next prime (904428948817).

It can be written as a sum of positive squares in 2 ways, for example, as 670905151744 + 233523797049 = 819088^2 + 483243^2 .

It is a cyclic number.

It is not a de Polignac number, because 904428948793 - 2¹³ = 904428940601 is a prime.

It is a super-2 number, since 2×904428948793² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904428948713) 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, 362059980 + ... + 362062477.

It is an arithmetic number, because the mean of its divisors is an integer number (226288268125).

Almost surely, 2^904428948793 is an apocalyptic number.

It is an amenable number.

904428948793 is a deficient number, since it is larger than the sum of its proper divisors (724123707).

904428948793 is a wasteful number, since it uses less digits than its factorization.

904428948793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724123706.

The product of its (nonzero) digits is 125411328, while the sum is 67.

The spelling of 904428948793 in words is "nine hundred four billion, four hundred twenty-eight million, nine hundred forty-eight thousand, seven hundred ninety-three".