826978425 has 48 divisors (see below), whose sum is σ = 1682808960. Its totient is φ = 348963840.

The previous prime is 826978421. The next prime is 826978463. The reversal of 826978425 is 524879628.

It is not a de Polignac number, because 826978425 - 2² = 826978421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (826978421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53760 + ... + 67409.

It is an arithmetic number, because the mean of its divisors is an integer number (35058520).

Almost surely, 2^826978425 is an apocalyptic number.

It is an amenable number.

826978425 is an abundant number, since it is smaller than the sum of its proper divisors (855830535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

826978425 is a wasteful number, since it uses less digits than its factorization.

826978425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121202 (or 121197 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 826978425 is about 28757.2325685209. The cubic root of 826978425 is about 938.6378433302.

The spelling of 826978425 in words is "eight hundred twenty-six million, nine hundred seventy-eight thousand, four hundred twenty-five".