9970389 has 48 divisors (see below), whose sum is σ = 17332224. Its totient is φ = 5443200.

The previous prime is 9970357. The next prime is 9970397. The reversal of 9970389 is 9830799.

It is a happy number.

It is not a de Polignac number, because 9970389 - 2⁵ = 9970357 is a prime.

It is a super-2 number, since 2×9970389² = 198817313622642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9970489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78444 + ... + 78570.

It is an arithmetic number, because the mean of its divisors is an integer number (361088).

Almost surely, 2^9970389 is an apocalyptic number.

9970389 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9970389 is a deficient number, since it is larger than the sum of its proper divisors (7361835).

9970389 is a wasteful number, since it uses less digits than its factorization.

9970389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9970389 is about 3157.5922789366. The cubic root of 9970389 is about 215.2306088793.

The spelling of 9970389 in words is "nine million, nine hundred seventy thousand, three hundred eighty-nine".