9978152 has 8 divisors (see below), whose sum is σ = 18709050. Its totient is φ = 4989072.

The previous prime is 9978131. The next prime is 9978169. The reversal of 9978152 is 2518799.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 3556996 = 2534^2 + 1886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623627 + ... + 623642.

Almost surely, 2^9978152 is an apocalyptic number.

It is an amenable number.

9978152 is a deficient number, since it is larger than the sum of its proper divisors (8730898).

9978152 is a wasteful number, since it uses less digits than its factorization.

9978152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247275 (or 1247271 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 9978152 is about 3158.8212991557. The cubic root of 9978152 is about 215.2864543020.

The spelling of 9978152 in words is "nine million, nine hundred seventy-eight thousand, one hundred fifty-two".