784925401 has 12 divisors (see below), whose sum is σ = 850968300. Its totient is φ = 723677760.

The previous prime is 784925399. The next prime is 784925423. The reversal of 784925401 is 104529487.

It can be written as a sum of positive squares in 6 ways, for example, as 39690000 + 745235401 = 6300^2 + 27299^2 .

It is not a de Polignac number, because 784925401 - 2¹ = 784925399 is a prime.

It is a super-2 number, since 2×784925401² = 1232215770270021602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (784925441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170275 + ... + 174823.

It is an arithmetic number, because the mean of its divisors is an integer number (70914025).

Almost surely, 2^784925401 is an apocalyptic number.

It is an amenable number.

784925401 is a deficient number, since it is larger than the sum of its proper divisors (66042899).

784925401 is a wasteful number, since it uses less digits than its factorization.

784925401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596 (or 5583 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 784925401 is about 28016.5201443720. The cubic root of 784925401 is about 922.4499135807.

The spelling of 784925401 in words is "seven hundred eighty-four million, nine hundred twenty-five thousand, four hundred one".