9964457 has 4 divisors (see below), whose sum is σ = 10015236. Its totient is φ = 9913680.

The previous prime is 9964439. The next prime is 9964463. The reversal of 9964457 is 7544699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 1297321 = 2944^2 + 1139^2 .

It is a cyclic number.

It is not a de Polignac number, because 9964457 - 2¹⁶ = 9898921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9969457) 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, 25094 + ... + 25487.

It is an arithmetic number, because the mean of its divisors is an integer number (2503809).

Almost surely, 2^9964457 is an apocalyptic number.

It is an amenable number.

9964457 is a deficient number, since it is larger than the sum of its proper divisors (50779).

9964457 is a wasteful number, since it uses less digits than its factorization.

9964457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50778.

The product of its digits is 272160, while the sum is 44.

The square root of 9964457 is about 3156.6528158795. The cubic root of 9964457 is about 215.1879157520.

The spelling of 9964457 in words is "nine million, nine hundred sixty-four thousand, four hundred fifty-seven".