9971490 has 32 divisors (see below), whose sum is σ = 24022080. Its totient is φ = 2649024.

The previous prime is 9971483. The next prime is 9971497. The reversal of 9971490 is 941799.

It is an interprime number because it is at equal distance from previous prime (9971483) and next prime (9971497).

It is a super-2 number, since 2×9971490² = 198861225640200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9971497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10932 + ... + 11808.

It is an arithmetic number, because the mean of its divisors is an integer number (750690).

Almost surely, 2^9971490 is an apocalyptic number.

9971490 is an abundant number, since it is smaller than the sum of its proper divisors (14050590).

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

9971490 is a wasteful number, since it uses less digits than its factorization.

9971490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 9971490 is about 3157.7666158220. The cubic root of 9971490 is about 215.2385310102.

The spelling of 9971490 in words is "nine million, nine hundred seventy-one thousand, four hundred ninety".