9978035 has 4 divisors (see below), whose sum is σ = 11973648. Its totient is φ = 7982424.

The previous prime is 9977999. The next prime is 9978037. The reversal of 9978035 is 5308799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5308799 = 317 ⋅16747.

It is a cyclic number.

It is not a de Polignac number, because 9978035 - 2⁶ = 9977971 is a prime.

It is a super-2 number, since 2×9978035² = 199122364922450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9977983 and 9978001.

It is not an unprimeable number, because it can be changed into a prime (9978037) 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, 997799 + ... + 997808.

It is an arithmetic number, because the mean of its divisors is an integer number (2993412).

Almost surely, 2^9978035 is an apocalyptic number.

9978035 is a deficient number, since it is larger than the sum of its proper divisors (1995613).

9978035 is a wasteful number, since it uses less digits than its factorization.

9978035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995612.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 9978035 is about 3158.8027795353. The cubic root of 9978035 is about 215.2856128431.

The spelling of 9978035 in words is "nine million, nine hundred seventy-eight thousand, thirty-five".