8400965 has 8 divisors (see below), whose sum is σ = 10130208. Its totient is φ = 6688080.

The previous prime is 8400943. The next prime is 8400967. The reversal of 8400965 is 5690048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8400965 - 2⁶ = 8400901 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2927 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (1266276).

Almost surely, 2^8400965 is an apocalyptic number.

It is an amenable number.

8400965 is a deficient number, since it is larger than the sum of its proper divisors (1729243).

8400965 is a wasteful number, since it uses less digits than its factorization.

8400965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 8400965 is about 2898.4418227731. The cubic root of 8400965 is about 203.2870553703.

The spelling of 8400965 in words is "eight million, four hundred thousand, nine hundred sixty-five".