9878397435 has 24 divisors (see below), whose sum is σ = 17412773040. Its totient is φ = 5179180992.

The previous prime is 9878397427. The next prime is 9878397461. The reversal of 9878397435 is 5347938789.

It is not a de Polignac number, because 9878397435 - 2³ = 9878397427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1857684 + ... + 1862993.

It is an arithmetic number, because the mean of its divisors is an integer number (725532210).

Almost surely, 2^9878397435 is an apocalyptic number.

9878397435 is a deficient number, since it is larger than the sum of its proper divisors (7534375605).

9878397435 is a wasteful number, since it uses less digits than its factorization.

9878397435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720747 (or 3720744 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The square root of 9878397435 is about 99390.1274523783. The cubic root of 9878397435 is about 2145.6662249892. Note that the first 3 decimals are identical.

The spelling of 9878397435 in words is "nine billion, eight hundred seventy-eight million, three hundred ninety-seven thousand, four hundred thirty-five".