9425649 has 4 divisors (see below), whose sum is σ = 12567536. Its totient is φ = 6283764.

The previous prime is 9425641. The next prime is 9425683. The reversal of 9425649 is 9465249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9425649 - 2³ = 9425641 is a prime.

It is a Duffinian number.

It is a Curzon number.

9425649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9425641) 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, 1570939 + ... + 1570944.

It is an arithmetic number, because the mean of its divisors is an integer number (3141884).

Almost surely, 2^9425649 is an apocalyptic number.

It is an amenable number.

9425649 is a deficient number, since it is larger than the sum of its proper divisors (3141887).

9425649 is a wasteful number, since it uses less digits than its factorization.

9425649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141886.

The product of its digits is 77760, while the sum is 39.

The square root of 9425649 is about 3070.1219845472. The cubic root of 9425649 is about 211.2372091739.

The spelling of 9425649 in words is "nine million, four hundred twenty-five thousand, six hundred forty-nine".