9970739 has 4 divisors (see below), whose sum is σ = 10119624. Its totient is φ = 9821856.

The previous prime is 9970733. The next prime is 9970757. The reversal of 9970739 is 9370799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370799 = 29 ⋅323131.

It is a cyclic number.

It is not a de Polignac number, because 9970739 - 2¹² = 9966643 is a prime.

It is a super-2 number, since 2×9970739² = 198831272412242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9970739.

It is not an unprimeable number, because it can be changed into a prime (9970733) 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, 74342 + ... + 74475.

It is an arithmetic number, because the mean of its divisors is an integer number (2529906).

Almost surely, 2^9970739 is an apocalyptic number.

9970739 is a deficient number, since it is larger than the sum of its proper divisors (148885).

9970739 is a wasteful number, since it uses less digits than its factorization.

9970739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148884.

The product of its (nonzero) digits is 107163, while the sum is 44.

The square root of 9970739 is about 3157.6477004251. The cubic root of 9970739 is about 215.2331273311.

The spelling of 9970739 in words is "nine million, nine hundred seventy thousand, seven hundred thirty-nine".