9957378 has 16 divisors (see below), whose sum is σ = 20004480. Its totient is φ = 3304176.

The previous prime is 9957347. The next prime is 9957379. The reversal of 9957378 is 8737599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9957379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (1250280).

Almost surely, 2^9957378 is an apocalyptic number.

9957378 is an abundant number, since it is smaller than the sum of its proper divisors (10047102).

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

9957378 is a wasteful number, since it uses less digits than its factorization.

9957378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481.

The product of its digits is 476280, while the sum is 48.

The square root of 9957378 is about 3155.5313340228. The cubic root of 9957378 is about 215.1369453836.

The spelling of 9957378 in words is "nine million, nine hundred fifty-seven thousand, three hundred seventy-eight".