7825979404 has 6 divisors (see below), whose sum is σ = 13695463964. Its totient is φ = 3912989700.

The previous prime is 7825979389. The next prime is 7825979423. The reversal of 7825979404 is 4049795287.

It is a super-2 number, since 2×7825979404² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978247422 + ... + 978247429.

Almost surely, 2^7825979404 is an apocalyptic number.

It is an amenable number.

7825979404 is a deficient number, since it is larger than the sum of its proper divisors (5869484560).

7825979404 is a wasteful number, since it uses less digits than its factorization.

7825979404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956494855 (or 1956494853 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The square root of 7825979404 is about 88464.5658102723. The cubic root of 7825979404 is about 1985.3918443403.

The spelling of 7825979404 in words is "seven billion, eight hundred twenty-five million, nine hundred seventy-nine thousand, four hundred four".